16629795777 has 32 divisors (see below), whose sum is σ = 27997857792. Its totient is φ = 8554892544.

The previous prime is 16629795719. The next prime is 16629795797. The reversal of 16629795777 is 77759792661.

It is not a de Polignac number, because 16629795777 - 2¹² = 16629791681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16629795797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1004443 + ... + 1020864.

It is an arithmetic number, because the mean of its divisors is an integer number (874933056).

Almost surely, 2^16629795777 is an apocalyptic number.

16629795777 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16629795777 is a deficient number, since it is larger than the sum of its proper divisors (11368062015).

16629795777 is a wasteful number, since it uses less digits than its factorization.

16629795777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025357.

The product of its digits is 70013160, while the sum is 66.

The spelling of 16629795777 in words is "sixteen billion, six hundred twenty-nine million, seven hundred ninety-five thousand, seven hundred seventy-seven".