61373661496 has 96 divisors (see below), whose sum is σ = 137631538800. Its totient is φ = 25564170240.

The previous prime is 61373661467. The next prime is 61373661551. The reversal of 61373661496 is 69416637316.

It is a happy number.

It is a super-3 number, since 3×61373661496³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18258856 + ... + 18262216.

Almost surely, 2^61373661496 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 61373661496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68815769400).

61373661496 is an abundant number, since it is smaller than the sum of its proper divisors (76257877304).

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

61373661496 is a wasteful number, since it uses less digits than its factorization.

61373661496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677 (or 4666 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 52.

The spelling of 61373661496 in words is "sixty-one billion, three hundred seventy-three million, six hundred sixty-one thousand, four hundred ninety-six".