161663041537914 has 32 divisors (see below), whose sum is σ = 369515900831616. Its totient is φ = 46189393274880.

The previous prime is 161663041537913. The next prime is 161663041537927. The reversal of 161663041537914 is 419735140366161.

It is a super-2 number, since 2×161663041537914² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161663041537913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76738054 + ... + 78816590.

It is an arithmetic number, because the mean of its divisors is an integer number (11547371900988).

Almost surely, 2^{161663041537914} is an apocalyptic number.

161663041537914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161663041537914 is an abundant number, since it is smaller than the sum of its proper divisors (207852859293702).

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

161663041537914 is a wasteful number, since it uses less digits than its factorization.

161663041537914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930390.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 161663041537914 in words is "one hundred sixty-one trillion, six hundred sixty-three billion, forty-one million, five hundred thirty-seven thousand, nine hundred fourteen".