15617610221002 has 16 divisors (see below), whose sum is σ = 23446690085952. Its totient is φ = 7802047422720.

The previous prime is 15617610220991. The next prime is 15617610221021. The reversal of 15617610221002 is 20012201671651.

It is a super-2 number, since 2×15617610221002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60992413 + ... + 61247935.

It is an arithmetic number, because the mean of its divisors is an integer number (1465418130372).

Almost surely, 2^{15617610221002} is an apocalyptic number.

15617610221002 is a deficient number, since it is larger than the sum of its proper divisors (7829079864950).

15617610221002 is a wasteful number, since it uses less digits than its factorization.

15617610221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281853.

The product of its (nonzero) digits is 10080, while the sum is 34.

Adding to 15617610221002 its reverse (20012201671651), we get a palindrome (35629811892653).

The spelling of 15617610221002 in words is "fifteen trillion, six hundred seventeen billion, six hundred ten million, two hundred twenty-one thousand, two".