54664561761 has 16 divisors (see below), whose sum is σ = 73483542528. Its totient is φ = 36144622800.

The previous prime is 54664561753. The next prime is 54664561807. The reversal of 54664561761 is 16716546645.

It is not a de Polignac number, because 54664561761 - 2³ = 54664561753 is a prime.

It is a super-2 number, since 2×54664561761² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54664561741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681600 + ... + 757566.

It is an arithmetic number, because the mean of its divisors is an integer number (4592721408).

Almost surely, 2^54664561761 is an apocalyptic number.

It is an amenable number.

54664561761 is a deficient number, since it is larger than the sum of its proper divisors (18818980767).

54664561761 is a wasteful number, since it uses less digits than its factorization.

54664561761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77932.

The product of its digits is 3628800, while the sum is 51.

The spelling of 54664561761 in words is "fifty-four billion, six hundred sixty-four million, five hundred sixty-one thousand, seven hundred sixty-one".