1091177948152 has 32 divisors (see below), whose sum is σ = 2101331913120. Its totient is φ = 530823853440.

The previous prime is 1091177948149. The next prime is 1091177948153. The reversal of 1091177948152 is 2518497711901.

It is a junction number, because it is equal to n+sod(n) for n = 1091177948093 and 1091177948102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091177948153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11158173 + ... + 11255539.

It is an arithmetic number, because the mean of its divisors is an integer number (65666622285).

Almost surely, 2^{1091177948152} is an apocalyptic number.

It is an amenable number.

1091177948152 is a deficient number, since it is larger than the sum of its proper divisors (1010153964968).

1091177948152 is a wasteful number, since it uses less digits than its factorization.

1091177948152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135271 (or 135267 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 55.

The spelling of 1091177948152 in words is "one trillion, ninety-one billion, one hundred seventy-seven million, nine hundred forty-eight thousand, one hundred fifty-two".