6616051499 has 16 divisors (see below), whose sum is σ = 7011401472. Its totient is φ = 6230413728.

The previous prime is 6616051457. The next prime is 6616051529. The reversal of 6616051499 is 9941506166.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6616051499 - 2⁸ = 6616051243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6616051999) 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, 392897 + ... + 409389.

It is an arithmetic number, because the mean of its divisors is an integer number (438212592).

Almost surely, 2^6616051499 is an apocalyptic number.

6616051499 is a deficient number, since it is larger than the sum of its proper divisors (395349973).

6616051499 is a wasteful number, since it uses less digits than its factorization.

6616051499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16786.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 6616051499 is about 81339.1142009796. The cubic root of 6616051499 is about 1877.2968828429.

The spelling of 6616051499 in words is "six billion, six hundred sixteen million, fifty-one thousand, four hundred ninety-nine".