61965667332 has 96 divisors (see below), whose sum is σ = 166053955200. Its totient is φ = 19972137600.

The previous prime is 61965667319. The next prime is 61965667339. The reversal of 61965667332 is 23376656916.

61965667332 is a `hidden beast` number, since 6 + 1 + 9 + 6 + 566 + 73 + 3 + 2 = 666.

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 (61965667339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308982 + ... + 468402.

It is an arithmetic number, because the mean of its divisors is an integer number (1729728700).

Almost surely, 2^61965667332 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 61965667332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83026977600).

61965667332 is an abundant number, since it is smaller than the sum of its proper divisors (104088287868).

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

61965667332 is a wasteful number, since it uses less digits than its factorization.

61965667332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159554 (or 159546 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 54.

The spelling of 61965667332 in words is "sixty-one billion, nine hundred sixty-five million, six hundred sixty-seven thousand, three hundred thirty-two".