161484237090 has 128 divisors (see below), whose sum is σ = 497406147840. Its totient is φ = 36844876800.

The previous prime is 161484237067. The next prime is 161484237097. The reversal of 161484237090 is 90732484161.

161484237090 is a `hidden beast` number, since 1 + 61 + 484 + 23 + 7 + 0 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (161484237097) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1548681 + ... + 1649660.

It is an arithmetic number, because the mean of its divisors is an integer number (3885985530).

Almost surely, 2^161484237090 is an apocalyptic number.

161484237090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161484237090 is an abundant number, since it is smaller than the sum of its proper divisors (335921910750).

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

161484237090 is a wasteful number, since it uses less digits than its factorization.

161484237090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198385 (or 3198379 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 161484237090 in words is "one hundred sixty-one billion, four hundred eighty-four million, two hundred thirty-seven thousand, ninety".