16016977706 has 4 divisors (see below), whose sum is σ = 24025466562. Its totient is φ = 8008488852.

The previous prime is 16016977699. The next prime is 16016977709. The reversal of 16016977706 is 60777961061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15928711681 + 88266025 = 126209^2 + 9395^2 .

It is not an unprimeable number, because it can be changed into a prime (16016977709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4004244425 + ... + 4004244428.

Almost surely, 2^16016977706 is an apocalyptic number.

16016977706 is a deficient number, since it is larger than the sum of its proper divisors (8008488856).

16016977706 is an equidigital number, since it uses as much as digits as its factorization.

16016977706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008488855.

The product of its (nonzero) digits is 666792, while the sum is 50.

The spelling of 16016977706 in words is "sixteen billion, sixteen million, nine hundred seventy-seven thousand, seven hundred six".