61446164264 has 16 divisors (see below), whose sum is σ = 116352268020. Its totient is φ = 30418892800.

The previous prime is 61446164251. The next prime is 61446164321. The reversal of 61446164264 is 46246164416.

61446164264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60481564900 + 964599364 = 245930^2 + 31058^2 .

It is a super-2 number, since 2×61446164264² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38022809 + ... + 38024424.

Almost surely, 2^61446164264 is an apocalyptic number.

It is an amenable number.

61446164264 is a deficient number, since it is larger than the sum of its proper divisors (54906103756).

61446164264 is a wasteful number, since it uses less digits than its factorization.

61446164264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76047340 (or 76047336 counting only the distinct ones).

The product of its digits is 663552, while the sum is 44.

The spelling of 61446164264 in words is "sixty-one billion, four hundred forty-six million, one hundred sixty-four thousand, two hundred sixty-four".