616773356640 has 216 divisors, whose sum is σ = 2448370229760. Its totient is φ = 140976751104.

The previous prime is 616773356587. The next prime is 616773356657. The reversal of 616773356640 is 46653377616.

It is a happy number.

616773356640 is a `hidden beast` number, since 6 + 1 + 6 + 7 + 7 + 33 + 566 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4300000 + ... + 4441119.

It is an arithmetic number, because the mean of its divisors is an integer number (11335047360).

Almost surely, 2^616773356640 is an apocalyptic number.

616773356640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616773356640 is an abundant number, since it is smaller than the sum of its proper divisors (1831596873120).

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

616773356640 is a wasteful number, since it uses less digits than its factorization.

616773356640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8741154 (or 8741136 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 616773356640 in words is "six hundred sixteen billion, seven hundred seventy-three million, three hundred fifty-six thousand, six hundred forty".