2657181156 has 48 divisors (see below), whose sum is σ = 7089849984. Its totient is φ = 758762496.

The previous prime is 2657181127. The next prime is 2657181157. The reversal of 2657181156 is 6511817562.

It is a super-2 number, since 2×2657181156² = 14121223391602992672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (2657181157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157716 + ... + 173748.

It is an arithmetic number, because the mean of its divisors is an integer number (147705208).

Almost surely, 2^2657181156 is an apocalyptic number.

It is an amenable number.

2657181156 is an abundant number, since it is smaller than the sum of its proper divisors (4432668828).

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

2657181156 is a wasteful number, since it uses less digits than its factorization.

2657181156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18020 (or 18018 counting only the distinct ones).

The product of its digits is 100800, while the sum is 42.

The square root of 2657181156 is about 51547.8530687748. The cubic root of 2657181156 is about 1385.0763738636.

The spelling of 2657181156 in words is "two billion, six hundred fifty-seven million, one hundred eighty-one thousand, one hundred fifty-six".