161290501629 has 16 divisors (see below), whose sum is σ = 216389120640. Its totient is φ = 106859724480.

The previous prime is 161290501597. The next prime is 161290501637. The reversal of 161290501629 is 926105092161.

It is not a de Polignac number, because 161290501629 - 2⁵ = 161290501597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161290502629) 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, 2426619 + ... + 2492199.

It is an arithmetic number, because the mean of its divisors is an integer number (13524320040).

Almost surely, 2^161290501629 is an apocalyptic number.

It is an amenable number.

161290501629 is a deficient number, since it is larger than the sum of its proper divisors (55098619011).

161290501629 is a wasteful number, since it uses less digits than its factorization.

161290501629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70660.

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 161290501629 in words is "one hundred sixty-one billion, two hundred ninety million, five hundred one thousand, six hundred twenty-nine".