16008763961 has 2 divisors, whose sum is σ = 16008763962. Its totient is φ = 16008763960.

The previous prime is 16008763957. The next prime is 16008763973. The reversal of 16008763961 is 16936780061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15714126736 + 294637225 = 125356^2 + 17165^2 .

It is an emirp because it is prime and its reverse (16936780061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16008763961 - 2² = 16008763957 is a prime.

It is not a weakly prime, because it can be changed into another prime (16008763951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8004381980 + 8004381981.

It is an arithmetic number, because the mean of its divisors is an integer number (8004381981).

Almost surely, 2^16008763961 is an apocalyptic number.

It is an amenable number.

16008763961 is a deficient number, since it is larger than the sum of its proper divisors (1).

16008763961 is an equidigital number, since it uses as much as digits as its factorization.

16008763961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 16008763961 in words is "sixteen billion, eight million, seven hundred sixty-three thousand, nine hundred sixty-one".