616191560451 has 48 divisors (see below), whose sum is σ = 930545441280. Its totient is φ = 392615674560.

The previous prime is 616191560449. The next prime is 616191560489. The reversal of 616191560451 is 154065191616.

616191560451 is a `hidden beast` number, since 6 + 1 + 6 + 191 + 5 + 6 + 0 + 451 = 666.

616191560451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 616191560451 - 2¹ = 616191560449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 616191560397 and 616191560406.

It is not an unprimeable number, because it can be changed into a prime (616191560401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3500716 + ... + 3672518.

It is an arithmetic number, because the mean of its divisors is an integer number (19386363360).

Almost surely, 2^616191560451 is an apocalyptic number.

616191560451 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

616191560451 is a deficient number, since it is larger than the sum of its proper divisors (314353880829).

616191560451 is a wasteful number, since it uses less digits than its factorization.

616191560451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172056 (or 172053 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 616191560451 in words is "six hundred sixteen billion, one hundred ninety-one million, five hundred sixty thousand, four hundred fifty-one".