61377164 has 24 divisors (see below), whose sum is σ = 110515776. Its totient is φ = 29808000.

The previous prime is 61377149. The next prime is 61377167. The reversal of 61377164 is 46177316.

It is not an unprimeable number, because it can be changed into a prime (61377167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43754 + ... + 45134.

It is an arithmetic number, because the mean of its divisors is an integer number (4604824).

Almost surely, 2^61377164 is an apocalyptic number.

It is an amenable number.

61377164 is a deficient number, since it is larger than the sum of its proper divisors (49138612).

61377164 is a wasteful number, since it uses less digits than its factorization.

61377164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697 (or 1695 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 61377164 is about 7834.3579188087. The cubic root of 61377164 is about 394.4593661279.

It can be divided in two parts, 613 and 77164, that added together give a palindrome (77777).

The spelling of 61377164 in words is "sixty-one million, three hundred seventy-seven thousand, one hundred sixty-four".