53669961072 has 300 divisors, whose sum is σ = 194600289576. Its totient is φ = 14154497280.

The previous prime is 53669961031. The next prime is 53669961089. The reversal of 53669961072 is 27016996635.

53669961072 is a `hidden beast` number, since 536 + 6 + 9 + 96 + 10 + 7 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 793047 + ... + 858057.

Almost surely, 2^53669961072 is an apocalyptic number.

53669961072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53669961072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97300144788).

53669961072 is an abundant number, since it is smaller than the sum of its proper divisors (140930328504).

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

53669961072 is a wasteful number, since it uses less digits than its factorization.

53669961072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65058 (or 65036 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 53669961072 in words is "fifty-three billion, six hundred sixty-nine million, nine hundred sixty-one thousand, seventy-two".