64157023353078 has 64 divisors (see below), whose sum is σ = 145509676635840. Its totient is φ = 20947806835200.

The previous prime is 64157023353047. The next prime is 64157023353089. The reversal of 64157023353078 is 87035332075146.

64157023353078 is a `hidden beast` number, since 6 + 4 + 1 + 5 + 7 + 0 + 2 + 33 + 530 + 78 = 666.

It is a super-2 number, since 2×64157023353078² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39614725 + ... + 41202432.

It is an arithmetic number, because the mean of its divisors is an integer number (2273588697435).

Almost surely, 2^{64157023353078} is an apocalyptic number.

64157023353078 is an abundant number, since it is smaller than the sum of its proper divisors (81352653282762).

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

64157023353078 is a wasteful number, since it uses less digits than its factorization.

64157023353078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80817470 (or 80817464 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 64157023353078 in words is "sixty-four trillion, one hundred fifty-seven billion, twenty-three million, three hundred fifty-three thousand, seventy-eight".