15620605607122 has 4 divisors (see below), whose sum is σ = 23430908410686. Its totient is φ = 7810302803560.

The previous prime is 15620605607059. The next prime is 15620605607153. The reversal of 15620605607122 is 22170650602651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8577043538281 + 7043562068841 = 2928659^2 + 2653971^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3905151401779 + ... + 3905151401782.

Almost surely, 2^{15620605607122} is an apocalyptic number.

15620605607122 is a deficient number, since it is larger than the sum of its proper divisors (7810302803564).

15620605607122 is an equidigital number, since it uses as much as digits as its factorization.

15620605607122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810302803563.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 15620605607122 in words is "fifteen trillion, six hundred twenty billion, six hundred five million, six hundred seven thousand, one hundred twenty-two".