157977755376 has 120 divisors (see below), whose sum is σ = 499725694080. Its totient is φ = 42760884096.

The previous prime is 157977755371. The next prime is 157977755381. The reversal of 157977755376 is 673557779751.

It is an interprime number because it is at equal distance from previous prime (157977755371) and next prime (157977755381).

It is a self number, because there is not a number n which added to its sum of digits gives 157977755376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157977755371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1722876 + ... + 1812251.

It is an arithmetic number, because the mean of its divisors is an integer number (4164380784).

Almost surely, 2^157977755376 is an apocalyptic number.

157977755376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

157977755376 is an abundant number, since it is smaller than the sum of its proper divisors (341747938704).

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

157977755376 is a wasteful number, since it uses less digits than its factorization.

157977755376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535171 (or 3535158 counting only the distinct ones).

The product of its digits is 340341750, while the sum is 69.

The spelling of 157977755376 in words is "one hundred fifty-seven billion, nine hundred seventy-seven million, seven hundred fifty-five thousand, three hundred seventy-six".