61384164460 has 96 divisors (see below), whose sum is σ = 132517969920. Its totient is φ = 23877984000.

The previous prime is 61384164431. The next prime is 61384164461. The reversal of 61384164460 is 6446148316.

It is not an unprimeable number, because it can be changed into a prime (61384164461) 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, 32289510 + ... + 32291410.

It is an arithmetic number, because the mean of its divisors is an integer number (1380395520).

Almost surely, 2^61384164460 is an apocalyptic number.

It is an amenable number.

61384164460 is an abundant number, since it is smaller than the sum of its proper divisors (71133805460).

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

61384164460 is a wasteful number, since it uses less digits than its factorization.

61384164460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 61384164460 in words is "sixty-one billion, three hundred eighty-four million, one hundred sixty-four thousand, four hundred sixty".