157978888055 has 8 divisors (see below), whose sum is σ = 189576961152. Its totient is φ = 126381580128.

The previous prime is 157978888013. The next prime is 157978888063. The reversal of 157978888055 is 550888879751.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157978888055 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157978888055.

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, 472049 + ... + 734021.

It is an arithmetic number, because the mean of its divisors is an integer number (23697120144).

Almost surely, 2^157978888055 is an apocalyptic number.

157978888055 is a deficient number, since it is larger than the sum of its proper divisors (31598073097).

157978888055 is a wasteful number, since it uses less digits than its factorization.

157978888055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382585.

The product of its (nonzero) digits is 225792000, while the sum is 71.

The spelling of 157978888055 in words is "one hundred fifty-seven billion, nine hundred seventy-eight million, eight hundred eighty-eight thousand, fifty-five".