155345564064 has 48 divisors (see below), whose sum is σ = 412363949760. Its totient is φ = 51200033280.

The previous prime is 155345564021. The next prime is 155345564071. The reversal of 155345564064 is 460465543551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 9082372 + ... + 9099459.

It is an arithmetic number, because the mean of its divisors is an integer number (8590915620).

Almost surely, 2^155345564064 is an apocalyptic number.

It is an amenable number.

155345564064 is an abundant number, since it is smaller than the sum of its proper divisors (257018385696).

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

155345564064 is a wasteful number, since it uses less digits than its factorization.

155345564064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18181933 (or 18181925 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 155345564064 in words is "one hundred fifty-five billion, three hundred forty-five million, five hundred sixty-four thousand, sixty-four".