15946372242 has 24 divisors (see below), whose sum is σ = 34677976320. Its totient is φ = 5295841560.

The previous prime is 15946372207. The next prime is 15946372271. The reversal of 15946372242 is 24227364951.

15946372242 is a `hidden beast` number, since 1 + 5 + 9 + 4 + 637 + 2 + 2 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1629642 + ... + 1639397.

It is an arithmetic number, because the mean of its divisors is an integer number (1444915680).

Almost surely, 2^15946372242 is an apocalyptic number.

15946372242 is an abundant number, since it is smaller than the sum of its proper divisors (18731604078).

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

15946372242 is a wasteful number, since it uses less digits than its factorization.

15946372242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269318 (or 3269315 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 15946372242 in words is "fifteen billion, nine hundred forty-six million, three hundred seventy-two thousand, two hundred forty-two".