64142760144 has 40 divisors (see below), whose sum is σ = 170180571040. Its totient is φ = 20803056768.

The previous prime is 64142760113. The next prime is 64142760179. The reversal of 64142760144 is 44106724146.

It is a super-2 number, since 2×64142760144² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18056434 + ... + 18059985.

It is an arithmetic number, because the mean of its divisors is an integer number (4254514276).

Almost surely, 2^64142760144 is an apocalyptic number.

It is an amenable number.

64142760144 is an abundant number, since it is smaller than the sum of its proper divisors (106037810896).

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

64142760144 is a wasteful number, since it uses less digits than its factorization.

64142760144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36116467 (or 36116461 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 64142760144 in words is "sixty-four billion, one hundred forty-two million, seven hundred sixty thousand, one hundred forty-four".