157155208565 has 16 divisors (see below), whose sum is σ = 197718316416. Its totient is φ = 119687937600.

The previous prime is 157155208543. The next prime is 157155208709. The reversal of 157155208565 is 565802551751.

It is a happy number.

It is not a de Polignac number, because 157155208565 - 2²⁰ = 157154159989 is a prime.

It is a super-3 number, since 3×157155208565³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 3214046 + ... + 3262575.

It is an arithmetic number, because the mean of its divisors is an integer number (12357394776).

Almost surely, 2^157155208565 is an apocalyptic number.

It is an amenable number.

157155208565 is a deficient number, since it is larger than the sum of its proper divisors (40563107851).

157155208565 is a wasteful number, since it uses less digits than its factorization.

157155208565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476860.

The product of its (nonzero) digits is 2100000, while the sum is 50.

The spelling of 157155208565 in words is "one hundred fifty-seven billion, one hundred fifty-five million, two hundred eight thousand, five hundred sixty-five".