15572270642 has 8 divisors (see below), whose sum is σ = 23364464256. Its totient is φ = 7784115892.

The previous prime is 15572270627. The next prime is 15572270653. The reversal of 15572270642 is 24607227551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×15572270642² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15572270642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000058 + ... + 1015509.

It is an arithmetic number, because the mean of its divisors is an integer number (2920558032).

Almost surely, 2^15572270642 is an apocalyptic number.

15572270642 is a deficient number, since it is larger than the sum of its proper divisors (7792193614).

15572270642 is a wasteful number, since it uses less digits than its factorization.

15572270642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019432.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 15572270642 in words is "fifteen billion, five hundred seventy-two million, two hundred seventy thousand, six hundred forty-two".