63465651552 has 48 divisors (see below), whose sum is σ = 166700140992. Its totient is φ = 21142162560.

The previous prime is 63465651533. The next prime is 63465651593. The reversal of 63465651552 is 25515656436.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46974 + ... + 359357.

It is an arithmetic number, because the mean of its divisors is an integer number (3472919604).

Almost surely, 2^63465651552 is an apocalyptic number.

It is an amenable number.

63465651552 is an abundant number, since it is smaller than the sum of its proper divisors (103234489440).

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

63465651552 is a wasteful number, since it uses less digits than its factorization.

63465651552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407971 (or 407963 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 48.

The spelling of 63465651552 in words is "sixty-three billion, four hundred sixty-five million, six hundred fifty-one thousand, five hundred fifty-two".