64551446153136 has 160 divisors (see below), whose sum is σ = 187019035729920. Its totient is φ = 21316454159616.

The previous prime is 64551446153099. The next prime is 64551446153191. The reversal of 64551446153136 is 63135164415546.

64551446153136 is a `hidden beast` number, since 6 + 4 + 5 + 5 + 1 + 4 + 4 + 615 + 3 + 13 + 6 = 666.

It is a super-2 number, since 2×64551446153136² (a number of 28 digits) contains 22 as substring.

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, 36610786 + ... + 38333438.

It is an arithmetic number, because the mean of its divisors is an integer number (1168868973312).

Almost surely, 2^{64551446153136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64551446153136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93509517864960).

64551446153136 is an abundant number, since it is smaller than the sum of its proper divisors (122467589576784).

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

64551446153136 is a wasteful number, since it uses less digits than its factorization.

64551446153136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723480 (or 1723468 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 54.

The spelling of 64551446153136 in words is "sixty-four trillion, five hundred fifty-one billion, four hundred forty-six million, one hundred fifty-three thousand, one hundred thirty-six".