2061321616 has 40 divisors (see below), whose sum is σ = 4125030624. Its totient is φ = 997248000.

The previous prime is 2061321611. The next prime is 2061321631. The reversal of 2061321616 is 6161231602.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2061321611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59616 + ... + 87616.

Almost surely, 2^2061321616 is an apocalyptic number.

It is an amenable number.

2061321616 is an abundant number, since it is smaller than the sum of its proper divisors (2063709008).

2061321616 is a wasteful number, since it uses less digits than its factorization.

2061321616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28159 (or 28153 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2061321616 is about 45401.7798770048. The cubic root of 2061321616 is about 1272.6683755825.

The spelling of 2061321616 in words is "two billion, sixty-one million, three hundred twenty-one thousand, six hundred sixteen".