54665651515511 has 8 divisors (see below), whose sum is σ = 55220605187664. Its totient is φ = 54110966659200.

The previous prime is 54665651515507. The next prime is 54665651515543. The reversal of 54665651515511 is 11551515656645.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54665651515511 - 2² = 54665651515507 is a prime.

It is a super-2 number, since 2×54665651515511² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54625651515511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66795170 + ... + 67608623.

It is an arithmetic number, because the mean of its divisors is an integer number (6902575648458).

Almost surely, 2^{54665651515511} is an apocalyptic number.

54665651515511 is a deficient number, since it is larger than the sum of its proper divisors (554953672153).

54665651515511 is a wasteful number, since it uses less digits than its factorization.

54665651515511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134407921.

The product of its digits is 13500000, while the sum is 56.

The spelling of 54665651515511 in words is "fifty-four trillion, six hundred sixty-five billion, six hundred fifty-one million, five hundred fifteen thousand, five hundred eleven".