190436495258061 has 24 divisors (see below), whose sum is σ = 296235938833016. Its totient is φ = 117191139240960.

The previous prime is 190436495258059. The next prime is 190436495258143. The reversal of 190436495258061 is 160852594634091.

190436495258061 is a `hidden beast` number, since 1 + 9 + 0 + 4 + 3 + 6 + 49 + 5 + 2 + 580 + 6 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19791652385961 + 170644842872100 = 4448781^2 + 13063110^2 .

It is not a de Polignac number, because 190436495258061 - 2¹ = 190436495258059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190436495258061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190436495258041) 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, 21948801 + ... + 29370441.

Almost surely, 2^{190436495258061} is an apocalyptic number.

It is an amenable number.

190436495258061 is a deficient number, since it is larger than the sum of its proper divisors (105799443574955).

190436495258061 is a wasteful number, since it uses less digits than its factorization.

190436495258061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640973 (or 7640970 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 190436495258061 in words is "one hundred ninety trillion, four hundred thirty-six billion, four hundred ninety-five million, two hundred fifty-eight thousand, sixty-one".