161190349320 has 256 divisors, whose sum is σ = 649270702080. Its totient is φ = 30917606400.

The previous prime is 161190349291. The next prime is 161190349367. The reversal of 161190349320 is 23943091161.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 550836 + ... + 791075.

It is an arithmetic number, because the mean of its divisors is an integer number (2536213680).

Almost surely, 2^161190349320 is an apocalyptic number.

161190349320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161190349320 is an abundant number, since it is smaller than the sum of its proper divisors (488080352760).

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

161190349320 is a wasteful number, since it uses less digits than its factorization.

161190349320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341956 (or 1341952 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 161190349320 in words is "one hundred sixty-one billion, one hundred ninety million, three hundred forty-nine thousand, three hundred twenty".