8155195690650 has 48 divisors (see below), whose sum is σ = 20226477190464. Its totient is φ = 2174547681280.

The previous prime is 8155195690567. The next prime is 8155195690651. The reversal of 8155195690650 is 560965915518.

It is not an unprimeable number, because it can be changed into a prime (8155195690651) 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, 221799 + ... + 4044698.

It is an arithmetic number, because the mean of its divisors is an integer number (421384941468).

Almost surely, 2^{8155195690650} is an apocalyptic number.

8155195690650 is an abundant number, since it is smaller than the sum of its proper divisors (12071281499814).

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

8155195690650 is a wasteful number, since it uses less digits than its factorization.

8155195690650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279255 (or 4279250 counting only the distinct ones).

The product of its (nonzero) digits is 14580000, while the sum is 60.

The spelling of 8155195690650 in words is "eight trillion, one hundred fifty-five billion, one hundred ninety-five million, six hundred ninety thousand, six hundred fifty".