655706311715 has 32 divisors (see below), whose sum is σ = 982067659776. Its totient is φ = 409194817920.

The previous prime is 655706311691. The next prime is 655706311751. The reversal of 655706311715 is 517113607556.

It is not a de Polignac number, because 655706311715 - 2¹⁶ = 655706246179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655706311715.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10116377 + ... + 10180986.

It is an arithmetic number, because the mean of its divisors is an integer number (30689614368).

Almost surely, 2^655706311715 is an apocalyptic number.

655706311715 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

655706311715 is a deficient number, since it is larger than the sum of its proper divisors (326361348061).

655706311715 is a wasteful number, since it uses less digits than its factorization.

655706311715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20297459.

The product of its (nonzero) digits is 661500, while the sum is 47.

The spelling of 655706311715 in words is "six hundred fifty-five billion, seven hundred six million, three hundred eleven thousand, seven hundred fifteen".