161477266207 has 2 divisors, whose sum is σ = 161477266208. Its totient is φ = 161477266206.

The previous prime is 161477266151. The next prime is 161477266277. The reversal of 161477266207 is 702662774161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161477266207 - 2¹⁵ = 161477233439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161477266277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80738633103 + 80738633104.

It is an arithmetic number, because the mean of its divisors is an integer number (80738633104).

Almost surely, 2^161477266207 is an apocalyptic number.

161477266207 is a deficient number, since it is larger than the sum of its proper divisors (1).

161477266207 is an equidigital number, since it uses as much as digits as its factorization.

161477266207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 161477266207 in words is "one hundred sixty-one billion, four hundred seventy-seven million, two hundred sixty-six thousand, two hundred seven".