616151263023643 has 4 divisors (see below), whose sum is σ = 616171015924488. Its totient is φ = 616131510122800.

The previous prime is 616151263023613. The next prime is 616151263023661. The reversal of 616151263023643 is 346320362151616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616151263023643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616151263023613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9876403633 + ... + 9876466018.

It is an arithmetic number, because the mean of its divisors is an integer number (154042753981122).

Almost surely, 2^{616151263023643} is an apocalyptic number.

616151263023643 is a deficient number, since it is larger than the sum of its proper divisors (19752900845).

616151263023643 is a wasteful number, since it uses less digits than its factorization.

616151263023643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19752900844.

The product of its (nonzero) digits is 2799360, while the sum is 49.

The spelling of 616151263023643 in words is "six hundred sixteen trillion, one hundred fifty-one billion, two hundred sixty-three million, twenty-three thousand, six hundred forty-three".