55138361662 has 8 divisors (see below), whose sum is σ = 82708540992. Its totient is φ = 27568848000.

The previous prime is 55138361659. The next prime is 55138361669. The reversal of 55138361662 is 26616383155.

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

It is a super-2 number, since 2×55138361662² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55138361669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221662 + ... + 399262.

It is an arithmetic number, because the mean of its divisors is an integer number (10338567624).

Almost surely, 2^55138361662 is an apocalyptic number.

55138361662 is a deficient number, since it is larger than the sum of its proper divisors (27570179330).

55138361662 is a wasteful number, since it uses less digits than its factorization.

55138361662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332834.

The product of its digits is 777600, while the sum is 46.

The spelling of 55138361662 in words is "fifty-five billion, one hundred thirty-eight million, three hundred sixty-one thousand, six hundred sixty-two".