123587037655 has 16 divisors (see below), whose sum is σ = 149795142624. Its totient is φ = 97880555520.

The previous prime is 123587037641. The next prime is 123587037667. The reversal of 123587037655 is 556730785321.

It is a de Polignac number, because none of the positive numbers 2^k-123587037655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85566 + ... + 504475.

It is an arithmetic number, because the mean of its divisors is an integer number (9362196414).

Almost surely, 2^123587037655 is an apocalyptic number.

123587037655 is a deficient number, since it is larger than the sum of its proper divisors (26208104969).

123587037655 is a wasteful number, since it uses less digits than its factorization.

123587037655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590466.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 123587037655 in words is "one hundred twenty-three billion, five hundred eighty-seven million, thirty-seven thousand, six hundred fifty-five".