155363881964 has 12 divisors (see below), whose sum is σ = 272517624288. Its totient is φ = 77501703600.

The previous prime is 155363881963. The next prime is 155363882021. The reversal of 155363881964 is 469188363551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (155363881963) 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, 45057407 + ... + 45060854.

It is an arithmetic number, because the mean of its divisors is an integer number (22709802024).

Almost surely, 2^155363881964 is an apocalyptic number.

It is an amenable number.

155363881964 is a deficient number, since it is larger than the sum of its proper divisors (117153742324).

155363881964 is a wasteful number, since it uses less digits than its factorization.

155363881964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90118696 (or 90118694 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 59.

The spelling of 155363881964 in words is "one hundred fifty-five billion, three hundred sixty-three million, eight hundred eighty-one thousand, nine hundred sixty-four".