155125990072 has 16 divisors (see below), whose sum is σ = 303507372240. Its totient is φ = 74190690816.

The previous prime is 155125990051. The next prime is 155125990073. The reversal of 155125990072 is 270099521551.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155125990073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421537833 + ... + 421538200.

It is an arithmetic number, because the mean of its divisors is an integer number (18969210765).

Almost surely, 2^155125990072 is an apocalyptic number.

It is an amenable number.

155125990072 is a deficient number, since it is larger than the sum of its proper divisors (148381382168).

155125990072 is a wasteful number, since it uses less digits than its factorization.

155125990072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843076062 (or 843076058 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 46.

The spelling of 155125990072 in words is "one hundred fifty-five billion, one hundred twenty-five million, nine hundred ninety thousand, seventy-two".