16000009977 has 16 divisors (see below), whose sum is σ = 24654913920. Its totient is φ = 9040132992.

The previous prime is 16000009957. The next prime is 16000010021. The reversal of 16000009977 is 77990000061.

It is not a de Polignac number, because 16000009977 - 2⁶ = 16000009913 is a prime.

It is a super-3 number, since 3×16000009977³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16000009957) 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, 4278498 + ... + 4282235.

It is an arithmetic number, because the mean of its divisors is an integer number (1540932120).

Almost surely, 2^16000009977 is an apocalyptic number.

It is an amenable number.

16000009977 is a deficient number, since it is larger than the sum of its proper divisors (8654903943).

16000009977 is an equidigital number, since it uses as much as digits as its factorization.

16000009977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8560832.

The product of its (nonzero) digits is 23814, while the sum is 39.

The spelling of 16000009977 in words is "sixteen billion, nine thousand, nine hundred seventy-seven".