161490328762 has 32 divisors (see below), whose sum is σ = 277326299520. Its totient is φ = 69088826880.

The previous prime is 161490328729. The next prime is 161490328781. The reversal of 161490328762 is 267823094161.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21508213 + ... + 21515719.

It is an arithmetic number, because the mean of its divisors is an integer number (8666446860).

Almost surely, 2^161490328762 is an apocalyptic number.

161490328762 is a deficient number, since it is larger than the sum of its proper divisors (115835970758).

161490328762 is a wasteful number, since it uses less digits than its factorization.

161490328762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 161490328762 in words is "one hundred sixty-one billion, four hundred ninety million, three hundred twenty-eight thousand, seven hundred sixty-two".