20490692433552 has 160 divisors (see below), whose sum is σ = 66952460482560. Its totient is φ = 5939331108480.

The previous prime is 20490692433461. The next prime is 20490692433569. The reversal of 20490692433552 is 25533429609402.

It is a happy number.

20490692433552 is a `hidden beast` number, since 2 + 0 + 4 + 9 + 0 + 69 + 24 + 3 + 3 + 552 = 666.

20490692433552 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93630148 + ... + 93848739.

It is an arithmetic number, because the mean of its divisors is an integer number (418452878016).

Almost surely, 2^{20490692433552} is an apocalyptic number.

20490692433552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20490692433552 is an abundant number, since it is smaller than the sum of its proper divisors (46461768049008).

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

20490692433552 is a wasteful number, since it uses less digits than its factorization.

20490692433552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187478938 (or 187478926 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 54.

The spelling of 20490692433552 in words is "twenty trillion, four hundred ninety billion, six hundred ninety-two million, four hundred thirty-three thousand, five hundred fifty-two".