64454641161360 has 80 divisors (see below), whose sum is σ = 211562881001856. Its totient is φ = 16176851113984.

The previous prime is 64454641161293. The next prime is 64454641161451. The reversal of 64454641161360 is 6316114645446.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7898849004 + ... + 7898857163.

Almost surely, 2^{64454641161360} is an apocalyptic number.

64454641161360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64454641161360 is an abundant number, since it is smaller than the sum of its proper divisors (147108239840496).

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

64454641161360 is a wasteful number, since it uses less digits than its factorization.

64454641161360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15797706200 (or 15797706194 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 64454641161360 in words is "sixty-four trillion, four hundred fifty-four billion, six hundred forty-one million, one hundred sixty-one thousand, three hundred sixty".