616366380 has 48 divisors (see below), whose sum is σ = 1972373760. Its totient is φ = 140883648.

The previous prime is 616366379. The next prime is 616366381. The reversal of 616366380 is 83663616.

It is an interprime number because it is at equal distance from previous prime (616366379) and next prime (616366381).

It is not an unprimeable number, because it can be changed into a prime (616366381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 733350 + ... + 734189.

It is an arithmetic number, because the mean of its divisors is an integer number (41091120).

Almost surely, 2^616366380 is an apocalyptic number.

616366380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616366380 is an abundant number, since it is smaller than the sum of its proper divisors (1356007380).

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

616366380 is a wasteful number, since it uses less digits than its factorization.

616366380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467558 (or 1467556 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 616366380 is about 24826.7271302522. The cubic root of 616366380 is about 851.0328298582.

The spelling of 616366380 in words is "six hundred sixteen million, three hundred sixty-six thousand, three hundred eighty".