155724456768 has 56 divisors (see below), whose sum is σ = 417824107200. Its totient is φ = 51177047040.

The previous prime is 155724456761. The next prime is 155724456791. The reversal of 155724456768 is 867654427551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155724456761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5698093 + ... + 5725356.

Almost surely, 2^155724456768 is an apocalyptic number.

It is an amenable number.

155724456768 is an abundant number, since it is smaller than the sum of its proper divisors (262099650432).

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

155724456768 is a wasteful number, since it uses less digits than its factorization.

155724456768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11423535 (or 11423525 counting only the distinct ones).

The product of its digits is 56448000, while the sum is 60.

The spelling of 155724456768 in words is "one hundred fifty-five billion, seven hundred twenty-four million, four hundred fifty-six thousand, seven hundred sixty-eight".