136995476641 has 9 divisors (see below), whose sum is σ = 137511519313. Its totient is φ = 136481367460.

The previous prime is 136995476623. The next prime is 136995476647. The reversal of 136995476641 is 146674599631.

The square root of 136995476641 is 370129.

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

It is not a de Polignac number, because 136995476641 - 2¹⁷ = 136995345569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136995476641.

It is not an unprimeable number, because it can be changed into a prime (136995476647) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 132875796 + ... + 132876826.

Almost surely, 2^136995476641 is an apocalyptic number.

136995476641 is the 370129-th square number.

136995476641 is the 185065-th centered octagonal number.

It is an amenable number.

136995476641 is a deficient number, since it is larger than the sum of its proper divisors (516042672).

136995476641 is an frugal number, since it uses more digits than its factorization.

136995476641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780 (or 1390 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 61.

The spelling of 136995476641 in words is "one hundred thirty-six billion, nine hundred ninety-five million, four hundred seventy-six thousand, six hundred forty-one".