61944688116 has 72 divisors (see below), whose sum is σ = 164669004864. Its totient is φ = 20357386560.

The previous prime is 61944688109. The next prime is 61944688121. The reversal of 61944688116 is 61188644916.

61944688116 is a `hidden beast` number, since 6 + 1 + 9 + 446 + 88 + 116 = 666.

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

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

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, 379785 + ... + 517808.

It is an arithmetic number, because the mean of its divisors is an integer number (2287069512).

Almost surely, 2^61944688116 is an apocalyptic number.

It is an amenable number.

61944688116 is an abundant number, since it is smaller than the sum of its proper divisors (102724316748).

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

61944688116 is a wasteful number, since it uses less digits than its factorization.

61944688116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897683 (or 897669 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The spelling of 61944688116 in words is "sixty-one billion, nine hundred forty-four million, six hundred eighty-eight thousand, one hundred sixteen".