15651442252 has 6 divisors (see below), whose sum is σ = 27390023948. Its totient is φ = 7825721124.

The previous prime is 15651442249. The next prime is 15651442267. The reversal of 15651442252 is 25224415651.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1956430278 + ... + 1956430285.

Almost surely, 2^15651442252 is an apocalyptic number.

It is an amenable number.

15651442252 is a deficient number, since it is larger than the sum of its proper divisors (11738581696).

15651442252 is a wasteful number, since it uses less digits than its factorization.

15651442252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3912860567 (or 3912860565 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The spelling of 15651442252 in words is "fifteen billion, six hundred fifty-one million, four hundred forty-two thousand, two hundred fifty-two".