1161519196644 has 27 divisors (see below), whose sum is σ = 2936078759523. Its totient is φ = 387170910072.

The previous prime is 1161519196627. The next prime is 1161519196661. The reversal of 1161519196644 is 4466919151611.

The square root of 1161519196644 is 1077738.

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

1161519196644 is a `hidden beast` number, since 1 + 1 + 61 + 519 + 1 + 9 + 6 + 64 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1161519196627) and next prime (1161519196661).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6376617 + ... + 6556239.

Almost surely, 2^{1161519196644} is an apocalyptic number.

1161519196644 is the 1077738-th square number.

It is an amenable number.

1161519196644 is an abundant number, since it is smaller than the sum of its proper divisors (1774559562879).

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

1161519196644 is an frugal number, since it uses more digits than its factorization.

1161519196644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359256 (or 179628 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The spelling of 1161519196644 in words is "one trillion, one hundred sixty-one billion, five hundred nineteen million, one hundred ninety-six thousand, six hundred forty-four".