616672811420 has 24 divisors (see below), whose sum is σ = 1371190134384. Its totient is φ = 232159175936.

The previous prime is 616672811393. The next prime is 616672811423. The reversal of 616672811420 is 24118276616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616672811423) 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, 906871442 + ... + 906872121.

It is an arithmetic number, because the mean of its divisors is an integer number (57132922266).

Almost surely, 2^616672811420 is an apocalyptic number.

It is an amenable number.

616672811420 is an abundant number, since it is smaller than the sum of its proper divisors (754517322964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616672811420 is a wasteful number, since it uses less digits than its factorization.

616672811420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813743589 (or 1813743587 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 616672811420 in words is "six hundred sixteen billion, six hundred seventy-two million, eight hundred eleven thousand, four hundred twenty".