20415466252532 has 24 divisors (see below), whose sum is σ = 38480351120232. Its totient is φ = 9421286313600.

The previous prime is 20415466252427. The next prime is 20415466252547. The reversal of 20415466252532 is 23525266451402.

It can be written as a sum of positive squares in 4 ways, for example, as 5148660512356 + 15266805740176 = 2269066^2 + 3907276^2 .

It is a super-2 number, since 2×20415466252532² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25361819 + ... + 26154402.

It is an arithmetic number, because the mean of its divisors is an integer number (1603347963343).

Almost surely, 2^{20415466252532} is an apocalyptic number.

It is an amenable number.

20415466252532 is a deficient number, since it is larger than the sum of its proper divisors (18064884867700).

20415466252532 is a wasteful number, since it uses less digits than its factorization.

20415466252532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51523859 (or 51523857 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 20415466252532 in words is "twenty trillion, four hundred fifteen billion, four hundred sixty-six million, two hundred fifty-two thousand, five hundred thirty-two".