155240626464 has 720 divisors, whose sum is σ = 592288316928. Its totient is φ = 39004416000.

The previous prime is 155240626427. The next prime is 155240626477. The reversal of 155240626464 is 464626042551.

155240626464 is a `hidden beast` number, since 1 + 5 + 524 + 0 + 6 + 2 + 64 + 64 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 68057004 + ... + 68059284.

Almost surely, 2^155240626464 is an apocalyptic number.

155240626464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155240626464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296144158464).

155240626464 is an abundant number, since it is smaller than the sum of its proper divisors (437047690464).

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

155240626464 is a wasteful number, since it uses less digits than its factorization.

155240626464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 155240626464 in words is "one hundred fifty-five billion, two hundred forty million, six hundred twenty-six thousand, four hundred sixty-four".