20553446151 has 48 divisors (see below), whose sum is σ = 34610368000. Its totient is φ = 11510921664.

The previous prime is 20553446107. The next prime is 20553446153. The reversal of 20553446151 is 15164435502.

20553446151 is a `hidden beast` number, since 2 + 0 + 5 + 5 + 34 + 4 + 615 + 1 = 666.

It is not a de Polignac number, because 20553446151 - 2²² = 20549251847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20553446153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 827745 + ... + 852213.

Almost surely, 2^20553446151 is an apocalyptic number.

20553446151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20553446151 is a deficient number, since it is larger than the sum of its proper divisors (14056921849).

20553446151 is a wasteful number, since it uses less digits than its factorization.

20553446151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24748 (or 24745 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 20553446151 in words is "twenty billion, five hundred fifty-three million, four hundred forty-six thousand, one hundred fifty-one".