1161397990150 has 24 divisors (see below), whose sum is σ = 2160327533760. Its totient is φ = 464531825760.

The previous prime is 1161397990063. The next prime is 1161397990163. The reversal of 1161397990150 is 510997931611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183787 + ... + 1535113.

It is an arithmetic number, because the mean of its divisors is an integer number (90013647240).

Almost surely, 2^{1161397990150} is an apocalyptic number.

1161397990150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161397990150 is a deficient number, since it is larger than the sum of its proper divisors (998929543610).

1161397990150 is a wasteful number, since it uses less digits than its factorization.

1161397990150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368528 (or 1368523 counting only the distinct ones).

The product of its (nonzero) digits is 459270, while the sum is 52.

The spelling of 1161397990150 in words is "one trillion, one hundred sixty-one billion, three hundred ninety-seven million, nine hundred ninety thousand, one hundred fifty".