64155412370 has 48 divisors (see below), whose sum is σ = 135843036120. Its totient is φ = 21748978944.

The previous prime is 64155412339. The next prime is 64155412417. The reversal of 64155412370 is 7321455146.

It can be written as a sum of positive squares in 4 ways, for example, as 24636755521 + 39518656849 = 156961^2 + 198793^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 691949 + ... + 779168.

Almost surely, 2^64155412370 is an apocalyptic number.

64155412370 is an abundant number, since it is smaller than the sum of its proper divisors (71687623750).

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

64155412370 is a wasteful number, since it uses less digits than its factorization.

64155412370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471227 (or 1471220 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 64155412370 in words is "sixty-four billion, one hundred fifty-five million, four hundred twelve thousand, three hundred seventy".