161516500495 has 32 divisors (see below), whose sum is σ = 226330928640. Its totient is φ = 108360685440.

The previous prime is 161516500459. The next prime is 161516500499. The reversal of 161516500495 is 594005615161.

It is not a de Polignac number, because 161516500495 - 2¹³ = 161516492303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161516500499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250369 + ... + 621061.

It is an arithmetic number, because the mean of its divisors is an integer number (7072841520).

Almost surely, 2^161516500495 is an apocalyptic number.

161516500495 is a deficient number, since it is larger than the sum of its proper divisors (64814428145).

161516500495 is a wasteful number, since it uses less digits than its factorization.

161516500495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370975.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 161516500495 in words is "one hundred sixty-one billion, five hundred sixteen million, five hundred thousand, four hundred ninety-five".