204156080637 has 8 divisors (see below), whose sum is σ = 272289840480. Its totient is φ = 136063187280.

The previous prime is 204156080629. The next prime is 204156080671. The reversal of 204156080637 is 736080651402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204156080637 - 2³ = 204156080629 is a prime.

It is a super-2 number, since 2×204156080637² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204156080617) 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, 10204962 + ... + 10224947.

It is an arithmetic number, because the mean of its divisors is an integer number (34036230060).

Almost surely, 2^204156080637 is an apocalyptic number.

It is an amenable number.

204156080637 is a deficient number, since it is larger than the sum of its proper divisors (68133759843).

204156080637 is a wasteful number, since it uses less digits than its factorization.

204156080637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20433243.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 204156080637 in words is "two hundred four billion, one hundred fifty-six million, eighty thousand, six hundred thirty-seven".