161505414126 has 96 divisors (see below), whose sum is σ = 445729340160. Its totient is φ = 41144226048.

The previous prime is 161505414073. The next prime is 161505414179. The reversal of 161505414126 is 621414505161.

161505414126 is a `hidden beast` number, since 1 + 6 + 1 + 50 + 541 + 41 + 26 = 666.

It is an interprime number because it is at equal distance from previous prime (161505414073) and next prime (161505414179).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1943496 + ... + 2024891.

It is an arithmetic number, because the mean of its divisors is an integer number (4643013960).

Almost surely, 2^161505414126 is an apocalyptic number.

161505414126 is an abundant number, since it is smaller than the sum of its proper divisors (284223926034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161505414126 is a wasteful number, since it uses less digits than its factorization.

161505414126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968438 (or 3968435 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

Adding to 161505414126 its reverse (621414505161), we get a palindrome (782919919287).

The spelling of 161505414126 in words is "one hundred sixty-one billion, five hundred five million, four hundred fourteen thousand, one hundred twenty-six".