157640745518 has 16 divisors (see below), whose sum is σ = 237612856320. Its totient is φ = 78436558200.

The previous prime is 157640745503. The next prime is 157640745547. The reversal of 157640745518 is 815547046751.

It is a self number, because there is not a number n which added to its sum of digits gives 157640745518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3985523 + ... + 4024881.

It is an arithmetic number, because the mean of its divisors is an integer number (14850803520).

Almost surely, 2^157640745518 is an apocalyptic number.

157640745518 is a deficient number, since it is larger than the sum of its proper divisors (79972110802).

157640745518 is a wasteful number, since it uses less digits than its factorization.

157640745518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49063.

The product of its (nonzero) digits is 4704000, while the sum is 53.

The spelling of 157640745518 in words is "one hundred fifty-seven billion, six hundred forty million, seven hundred forty-five thousand, five hundred eighteen".