64157392332242 has 32 divisors (see below), whose sum is σ = 107219412080640. Its totient is φ = 28541742152080.

The previous prime is 64157392332151. The next prime is 64157392332251. The reversal of 64157392332242 is 24223329375146.

It is a super-2 number, since 2×64157392332242² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225123803 + ... + 225408609.

It is an arithmetic number, because the mean of its divisors is an integer number (3350606627520).

Almost surely, 2^{64157392332242} is an apocalyptic number.

64157392332242 is a deficient number, since it is larger than the sum of its proper divisors (43062019748398).

64157392332242 is a wasteful number, since it uses less digits than its factorization.

64157392332242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502726.

The product of its digits is 13063680, while the sum is 53.

The spelling of 64157392332242 in words is "sixty-four trillion, one hundred fifty-seven billion, three hundred ninety-two million, three hundred thirty-two thousand, two hundred forty-two".