155073523972 has 12 divisors (see below), whose sum is σ = 271417982976. Its totient is φ = 77525528840.

The previous prime is 155073523939. The next prime is 155073524093. The reversal of 155073523972 is 279325370551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777188 + ... + 2832475.

It is an arithmetic number, because the mean of its divisors is an integer number (22618165248).

Almost surely, 2^155073523972 is an apocalyptic number.

It is an amenable number.

155073523972 is a deficient number, since it is larger than the sum of its proper divisors (116344459004).

155073523972 is a wasteful number, since it uses less digits than its factorization.

155073523972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616578 (or 5616576 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 49.

The spelling of 155073523972 in words is "one hundred fifty-five billion, seventy-three million, five hundred twenty-three thousand, nine hundred seventy-two".