616537329406 has 8 divisors (see below), whose sum is σ = 924839075160. Its totient is φ = 308257637688.

The previous prime is 616537329391. The next prime is 616537329433. The reversal of 616537329406 is 604923735616.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5443441 + ... + 5555548.

It is an arithmetic number, because the mean of its divisors is an integer number (115604884395).

Almost surely, 2^616537329406 is an apocalyptic number.

616537329406 is a deficient number, since it is larger than the sum of its proper divisors (308301745754).

616537329406 is a wasteful number, since it uses less digits than its factorization.

616537329406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11027018.

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 616537329406 in words is "six hundred sixteen billion, five hundred thirty-seven million, three hundred twenty-nine thousand, four hundred six".