623242661015 has 16 divisors (see below), whose sum is σ = 811569550176. Its totient is φ = 456727440000.

The previous prime is 623242660981. The next prime is 623242661029. The reversal of 623242661015 is 510166242326.

It is not a de Polignac number, because 623242661015 - 2¹⁸ = 623242398871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 623242661015.

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, 36588236 + ... + 36605265.

It is an arithmetic number, because the mean of its divisors is an integer number (50723096886).

Almost surely, 2^623242661015 is an apocalyptic number.

623242661015 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

623242661015 is a deficient number, since it is larger than the sum of its proper divisors (188326889161).

623242661015 is a wasteful number, since it uses less digits than its factorization.

623242661015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73193650.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 623242661015 in words is "six hundred twenty-three billion, two hundred forty-two million, six hundred sixty-one thousand, fifteen".