616255515454 has 16 divisors (see below), whose sum is σ = 931257808416. Its totient is φ = 305839548000.

The previous prime is 616255515451. The next prime is 616255515503. The reversal of 616255515454 is 454515552616.

It is a super-2 number, since 2×616255515454² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 616255515398 and 616255515407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616255515451) 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, 451237 + ... + 1198384.

It is an arithmetic number, because the mean of its divisors is an integer number (58203613026).

Almost surely, 2^616255515454 is an apocalyptic number.

616255515454 is a deficient number, since it is larger than the sum of its proper divisors (315002292962).

616255515454 is a wasteful number, since it uses less digits than its factorization.

616255515454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651011.

The product of its digits is 3600000, while the sum is 49.

The spelling of 616255515454 in words is "six hundred sixteen billion, two hundred fifty-five million, five hundred fifteen thousand, four hundred fifty-four".