655142688915 has 32 divisors (see below), whose sum is σ = 1231485002496. Its totient is φ = 293210712960.

The previous prime is 655142688913. The next prime is 655142688917. The reversal of 655142688915 is 519886241556.

It is an interprime number because it is at equal distance from previous prime (655142688913) and next prime (655142688917).

It is not a de Polignac number, because 655142688915 - 2¹ = 655142688913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655142688911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152711769 + ... + 152716058.

It is an arithmetic number, because the mean of its divisors is an integer number (38483906328).

Almost surely, 2^655142688915 is an apocalyptic number.

655142688915 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

655142688915 is a deficient number, since it is larger than the sum of its proper divisors (576342313581).

655142688915 is a wasteful number, since it uses less digits than its factorization.

655142688915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305427859.

The product of its digits is 20736000, while the sum is 60.

The spelling of 655142688915 in words is "six hundred fifty-five billion, one hundred forty-two million, six hundred eighty-eight thousand, nine hundred fifteen".