190165312545 has 128 divisors (see below), whose sum is σ = 342007142400. Its totient is φ = 89637470208.

The previous prime is 190165312529. The next prime is 190165312609. The reversal of 190165312545 is 545213561091.

It is not a de Polignac number, because 190165312545 - 2⁴ = 190165312529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190165312497 and 190165312506.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 72664077 + ... + 72666693.

It is an arithmetic number, because the mean of its divisors is an integer number (2671930800).

Almost surely, 2^190165312545 is an apocalyptic number.

190165312545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190165312545 is a deficient number, since it is larger than the sum of its proper divisors (151841829855).

190165312545 is a wasteful number, since it uses less digits than its factorization.

190165312545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 190165312545 in words is "one hundred ninety billion, one hundred sixty-five million, three hundred twelve thousand, five hundred forty-five".