61355164 has 12 divisors (see below), whose sum is σ = 115630984. Its totient is φ = 28317744.

The previous prime is 61355141. The next prime is 61355179. The reversal of 61355164 is 46155316.

It is a super-2 number, since 2×61355164² = 7528912298933792, which 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 3 ways as a sum of consecutive naturals, for example, 589902 + ... + 590005.

Almost surely, 2^61355164 is an apocalyptic number.

It is an amenable number.

61355164 is a deficient number, since it is larger than the sum of its proper divisors (54275820).

61355164 is a wasteful number, since it uses less digits than its factorization.

61355164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179924 (or 1179922 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 61355164 is about 7832.9537212982. The cubic root of 61355164 is about 394.4122305563.

The spelling of 61355164 in words is "sixty-one million, three hundred fifty-five thousand, one hundred sixty-four".