161445039300 has 72 divisors (see below), whose sum is σ = 519015912800. Its totient is φ = 43052009760.

The previous prime is 161445039293. The next prime is 161445039307. The reversal of 161445039300 is 3930544161.

161445039300 is a `hidden beast` number, since 1 + 6 + 144 + 503 + 9 + 3 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (161445039293) and next prime (161445039307).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (161445039307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29894530 + ... + 29899929.

Almost surely, 2^161445039300 is an apocalyptic number.

161445039300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161445039300 is an abundant number, since it is smaller than the sum of its proper divisors (357570873500).

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

161445039300 is a wasteful number, since it uses less digits than its factorization.

161445039300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59794482 (or 59794469 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 161445039300 in words is "one hundred sixty-one billion, four hundred forty-five million, thirty-nine thousand, three hundred".