65472686532 has 144 divisors (see below), whose sum is σ = 187512579072. Its totient is φ = 19810565280.

The previous prime is 65472686527. The next prime is 65472686533. The reversal of 65472686532 is 23568627456.

65472686532 is a `hidden beast` number, since 6 + 5 + 4 + 7 + 26 + 86 + 532 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (65472686533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7768873 + ... + 7777295.

It is an arithmetic number, because the mean of its divisors is an integer number (1302170688).

Almost surely, 2^65472686532 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 65472686532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93756289536).

65472686532 is an abundant number, since it is smaller than the sum of its proper divisors (122039892540).

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

65472686532 is a wasteful number, since it uses less digits than its factorization.

65472686532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9180 (or 9166 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 65472686532 in words is "sixty-five billion, four hundred seventy-two million, six hundred eighty-six thousand, five hundred thirty-two".