616235400609 has 8 divisors (see below), whose sum is σ = 821651125152. Its totient is φ = 410821638240.

The previous prime is 616235400581. The next prime is 616235400653. The reversal of 616235400609 is 906004532616.

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

It is not a de Polignac number, because 616235400609 - 2⁸ = 616235400353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616235400409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569514 + ... + 1247724.

It is an arithmetic number, because the mean of its divisors is an integer number (102706390644).

Almost surely, 2^616235400609 is an apocalyptic number.

It is an amenable number.

616235400609 is a deficient number, since it is larger than the sum of its proper divisors (205415724543).

616235400609 is a wasteful number, since it uses less digits than its factorization.

616235400609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981087.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 616235400609 in words is "six hundred sixteen billion, two hundred thirty-five million, four hundred thousand, six hundred nine".