1561562403332 has 24 divisors (see below), whose sum is σ = 2741131562400. Its totient is φ = 778384893440.

The previous prime is 1561562403307. The next prime is 1561562403353. The reversal of 1561562403332 is 2333042651651.

It is a super-3 number, since 3×1561562403332³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1561562403332.

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 7 ways as a sum of consecutive naturals, for example, 1765607 + ... + 2498097.

It is an arithmetic number, because the mean of its divisors is an integer number (114213815100).

Almost surely, 2^{1561562403332} is an apocalyptic number.

It is an amenable number.

1561562403332 is a deficient number, since it is larger than the sum of its proper divisors (1179569159068).

1561562403332 is a wasteful number, since it uses less digits than its factorization.

1561562403332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734131 (or 734129 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 1561562403332 in words is "one trillion, five hundred sixty-one billion, five hundred sixty-two million, four hundred three thousand, three hundred thirty-two".