2156016510 has 48 divisors (see below), whose sum is σ = 5634733104. Its totient is φ = 571954176.

The previous prime is 2156016493. The next prime is 2156016559. The reversal of 2156016510 is 156106512.

It is a happy number.

2156016510 is a `hidden beast` number, since 2 + 1 + 5 + 6 + 0 + 1 + 651 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44692 + ... + 79431.

It is an arithmetic number, because the mean of its divisors is an integer number (117390273).

Almost surely, 2^2156016510 is an apocalyptic number.

2156016510 is an abundant number, since it is smaller than the sum of its proper divisors (3478716594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2156016510 is a wasteful number, since it uses less digits than its factorization.

2156016510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124329 (or 124326 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 2156016510 is about 46432.9248486459. The cubic root of 2156016510 is about 1291.8656797391.

It can be divided in two parts, 215601 and 6510, that added together give a triangular number (222111 = T₆₆₆).

The spelling of 2156016510 in words is "two billion, one hundred fifty-six million, sixteen thousand, five hundred ten".