64510354480 has 160 divisors (see below), whose sum is σ = 180507071808. Its totient is φ = 21125529600.

The previous prime is 64510354459. The next prime is 64510354577. The reversal of 64510354480 is 8445301546.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 400272 + ... + 537808.

Almost surely, 2^64510354480 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 64510354480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90253535904).

64510354480 is an abundant number, since it is smaller than the sum of its proper divisors (115996717328).

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

64510354480 is a wasteful number, since it uses less digits than its factorization.

64510354480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137615 (or 137609 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 64510354480 in words is "sixty-four billion, five hundred ten million, three hundred fifty-four thousand, four hundred eighty".