5661912229504 has 96 divisors (see below), whose sum is σ = 11697332760900. Its totient is φ = 2729728143360.

The previous prime is 5661912229483. The next prime is 5661912229511. The reversal of 5661912229504 is 4059222191665.

It can be written as a sum of positive squares in 2 ways, for example, as 5608143895104 + 53768334400 = 2368152^2 + 231880^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33990132 + ... + 34156300.

Almost surely, 2^{5661912229504} 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 5661912229504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5848666380450).

5661912229504 is an abundant number, since it is smaller than the sum of its proper divisors (6035420531396).

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

5661912229504 is a wasteful number, since it uses less digits than its factorization.

5661912229504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166522 (or 166479 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 5661912229504 in words is "five trillion, six hundred sixty-one billion, nine hundred twelve million, two hundred twenty-nine thousand, five hundred four".