155400015604 has 24 divisors (see below), whose sum is σ = 273411762120. Its totient is φ = 77282525184.

The previous prime is 155400015487. The next prime is 155400015607. The reversal of 155400015604 is 406510004551.

It can be written as a sum of positive squares in 4 ways, for example, as 7952400 + 155392063204 = 2820^2 + 394198^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155400015607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4749252 + ... + 4781860.

It is an arithmetic number, because the mean of its divisors is an integer number (11392156755).

Almost surely, 2^155400015604 is an apocalyptic number.

It is an amenable number.

155400015604 is a deficient number, since it is larger than the sum of its proper divisors (118011746516).

155400015604 is a wasteful number, since it uses less digits than its factorization.

155400015604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38979 (or 38977 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 155400015604 in words is "one hundred fifty-five billion, four hundred million, fifteen thousand, six hundred four".