15220606758642 has 16 divisors (see below), whose sum is σ = 33823570574880. Its totient is φ = 5073535586196.

The previous prime is 15220606758557. The next prime is 15220606758647. The reversal of 15220606758642 is 24685760602251.

15220606758642 is a `hidden beast` number, since 1 + 5 + 2 + 20 + 606 + 7 + 5 + 8 + 6 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 281863088123 = 15220606758642 / (1 + 5 + 2 + 2 + 0 + 6 + 0 + 6 + 7 + 5 + 8 + 6 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (15220606758647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140931544008 + ... + 140931544115.

It is an arithmetic number, because the mean of its divisors is an integer number (2113973160930).

Almost surely, 2^{15220606758642} is an apocalyptic number.

15220606758642 is an abundant number, since it is smaller than the sum of its proper divisors (18602963816238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15220606758642 is a wasteful number, since it uses less digits than its factorization.

15220606758642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281863088134 (or 281863088128 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 15220606758642 in words is "fifteen trillion, two hundred twenty billion, six hundred six million, seven hundred fifty-eight thousand, six hundred forty-two".