157116772740 has 48 divisors (see below), whose sum is σ = 440119205568. Its totient is φ = 41879497344.

The previous prime is 157116772699. The next prime is 157116772793. The reversal of 157116772740 is 47277611751.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 157116772740.

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, 433422 + ... + 708581.

It is an arithmetic number, because the mean of its divisors is an integer number (9169150116).

Almost surely, 2^157116772740 is an apocalyptic number.

157116772740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157116772740 is an abundant number, since it is smaller than the sum of its proper divisors (283002432828).

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

157116772740 is a wasteful number, since it uses less digits than its factorization.

157116772740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144308 (or 1144306 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 48.

The spelling of 157116772740 in words is "one hundred fifty-seven billion, one hundred sixteen million, seven hundred seventy-two thousand, seven hundred forty".