190170999396 has 135 divisors (see below), whose sum is σ = 578478157257. Its totient is φ = 54318872160.

The previous prime is 190170999391. The next prime is 190170999397. The reversal of 190170999396 is 693999071091.

The square root of 190170999396 is 436086.

It is a perfect power (a square), and thus also a powerful number.

190170999396 is a `hidden beast` number, since 1 + 90 + 1 + 70 + 9 + 99 + 396 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37602639396 + 152568360000 = 193914^2 + 390600^2 .

It is a super-2 number, since 2×190170999396² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (190170999391) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 54945106 + ... + 54948566.

Almost surely, 2^190170999396 is an apocalyptic number.

190170999396 is the 436086-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190170999396

190170999396 is an abundant number, since it is smaller than the sum of its proper divisors (388307157861).

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

190170999396 is an frugal number, since it uses more digits than its factorization.

190170999396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6952 (or 3473 counting only the distinct ones).

The product of its (nonzero) digits is 7440174, while the sum is 63.

The spelling of 190170999396 in words is "one hundred ninety billion, one hundred seventy million, nine hundred ninety-nine thousand, three hundred ninety-six".