1672057155 has 16 divisors (see below), whose sum is σ = 2676385440. Its totient is φ = 891399168.

The previous prime is 1672057139. The next prime is 1672057187. The reversal of 1672057155 is 5517502761.

It is not a de Polignac number, because 1672057155 - 2⁴ = 1672057139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17401 + ... + 60389.

It is an arithmetic number, because the mean of its divisors is an integer number (167274090).

Almost surely, 2^1672057155 is an apocalyptic number.

1672057155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1672057155 is a deficient number, since it is larger than the sum of its proper divisors (1004328285).

1672057155 is a wasteful number, since it uses less digits than its factorization.

1672057155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45590.

The product of its (nonzero) digits is 73500, while the sum is 39.

The square root of 1672057155 is about 40890.7954801567. The cubic root of 1672057155 is about 1186.9079520389.

The spelling of 1672057155 in words is "one billion, six hundred seventy-two million, fifty-seven thousand, one hundred fifty-five".