6616428031 has 8 divisors (see below), whose sum is σ = 6657560000. Its totient is φ = 6575346720.

The previous prime is 6616428011. The next prime is 6616428037. The reversal of 6616428031 is 1308246166.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6616428031 - 2⁷ = 6616427903 is a prime.

It is a super-2 number, since 2×6616428031² = 87554239778805073922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6616428037) 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, 268570 + ... + 292168.

It is an arithmetic number, because the mean of its divisors is an integer number (832195000).

Almost surely, 2^6616428031 is an apocalyptic number.

6616428031 is a deficient number, since it is larger than the sum of its proper divisors (41131969).

6616428031 is a wasteful number, since it uses less digits than its factorization.

6616428031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25329.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 6616428031 is about 81341.4287494386. The cubic root of 6616428031 is about 1877.3324956724.

The spelling of 6616428031 in words is "six billion, six hundred sixteen million, four hundred twenty-eight thousand, thirty-one".