64157043753370 has 32 divisors (see below), whose sum is σ = 115532676060480. Its totient is φ = 25651708435200.

The previous prime is 64157043753331. The next prime is 64157043753371. The reversal of 64157043753370 is 7335734075146.

It is a happy number.

It is a super-2 number, since 2×64157043753370² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64157043753371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390997845 + ... + 391161895.

It is an arithmetic number, because the mean of its divisors is an integer number (3610396126890).

Almost surely, 2^{64157043753370} is an apocalyptic number.

64157043753370 is a deficient number, since it is larger than the sum of its proper divisors (51375632307110).

64157043753370 is a wasteful number, since it uses less digits than its factorization.

64157043753370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180750.

The product of its (nonzero) digits is 22226400, while the sum is 55.

The spelling of 64157043753370 in words is "sixty-four trillion, one hundred fifty-seven billion, forty-three million, seven hundred fifty-three thousand, three hundred seventy".