155216562792 has 16 divisors (see below), whose sum is σ = 388041407040. Its totient is φ = 51738854256.

The previous prime is 155216562719. The next prime is 155216562793. The reversal of 155216562792 is 297265612551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (155216562793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3233678368 + ... + 3233678415.

It is an arithmetic number, because the mean of its divisors is an integer number (24252587940).

Almost surely, 2^155216562792 is an apocalyptic number.

155216562792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155216562792 is an abundant number, since it is smaller than the sum of its proper divisors (232824844248).

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

155216562792 is a wasteful number, since it uses less digits than its factorization.

155216562792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6467356792 (or 6467356788 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 51.

The spelling of 155216562792 in words is "one hundred fifty-five billion, two hundred sixteen million, five hundred sixty-two thousand, seven hundred ninety-two".