55131652461648 has 160 divisors (see below), whose sum is σ = 164612495911680. Its totient is φ = 15573589954560.

The previous prime is 55131652461623. The next prime is 55131652461707. The reversal of 55131652461648 is 84616425613155.

It is a super-2 number, since 2×55131652461648² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383327286 + ... + 383471082.

It is an arithmetic number, because the mean of its divisors is an integer number (1028828099448).

Almost surely, 2^{55131652461648} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55131652461648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82306247955840).

55131652461648 is an abundant number, since it is smaller than the sum of its proper divisors (109480843450032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55131652461648 is a wasteful number, since it uses less digits than its factorization.

55131652461648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156725 (or 156719 counting only the distinct ones).

The product of its digits is 20736000, while the sum is 57.

The spelling of 55131652461648 in words is "fifty-five trillion, one hundred thirty-one billion, six hundred fifty-two million, four hundred sixty-one thousand, six hundred forty-eight".