161152212415 has 16 divisors (see below), whose sum is σ = 200723717376. Its totient is φ = 124073683200.

The previous prime is 161152212409. The next prime is 161152212421. The reversal of 161152212415 is 514212251161.

It is an interprime number because it is at equal distance from previous prime (161152212409) and next prime (161152212421).

It is not a de Polignac number, because 161152212415 - 2³ = 161152212407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2844022 + ... + 2900131.

It is an arithmetic number, because the mean of its divisors is an integer number (12545232336).

Almost surely, 2^161152212415 is an apocalyptic number.

161152212415 is a deficient number, since it is larger than the sum of its proper divisors (39571504961).

161152212415 is a wasteful number, since it uses less digits than its factorization.

161152212415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744370.

The product of its digits is 4800, while the sum is 31.

Adding to 161152212415 its reverse (514212251161), we get a palindrome (675364463576).

The spelling of 161152212415 in words is "one hundred sixty-one billion, one hundred fifty-two million, two hundred twelve thousand, four hundred fifteen".