61440058512 has 120 divisors (see below), whose sum is σ = 196575739776. Its totient is φ = 17548489728.

The previous prime is 61440058487. The next prime is 61440058523. The reversal of 61440058512 is 21585004416.

It is a happy number.

61440058512 is a `hidden beast` number, since 61 + 4 + 4 + 0 + 0 + 585 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 3718333 + ... + 3734819.

Almost surely, 2^61440058512 is an apocalyptic number.

It is an amenable number.

61440058512 is an abundant number, since it is smaller than the sum of its proper divisors (135135681264).

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

61440058512 is a wasteful number, since it uses less digits than its factorization.

61440058512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20205 (or 20196 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 61440058512 in words is "sixty-one billion, four hundred forty million, fifty-eight thousand, five hundred twelve".