15220630802455 has 16 divisors (see below), whose sum is σ = 19772721206784. Its totient is φ = 11181003045120.

The previous prime is 15220630802387. The next prime is 15220630802473. The reversal of 15220630802455 is 55420803602251.

It is not a de Polignac number, because 15220630802455 - 2²⁹ = 15220093931543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612981174 + ... + 613006003.

It is an arithmetic number, because the mean of its divisors is an integer number (1235795075424).

Almost surely, 2^{15220630802455} is an apocalyptic number.

15220630802455 is a deficient number, since it is larger than the sum of its proper divisors (4552090404329).

15220630802455 is a wasteful number, since it uses less digits than its factorization.

15220630802455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225987386.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 15220630802455 in words is "fifteen trillion, two hundred twenty billion, six hundred thirty million, eight hundred two thousand, four hundred fifty-five".