1161223787460 has 48 divisors (see below), whose sum is σ = 3547010843712. Its totient is φ = 281508796800.

The previous prime is 1161223787453. The next prime is 1161223787509. The reversal of 1161223787460 is 647873221611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879714331 + ... + 879715650.

It is an arithmetic number, because the mean of its divisors is an integer number (73896059244).

Almost surely, 2^{1161223787460} is an apocalyptic number.

1161223787460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161223787460 is an abundant number, since it is smaller than the sum of its proper divisors (2385787056252).

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

1161223787460 is a wasteful number, since it uses less digits than its factorization.

1161223787460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759430004 (or 1759430002 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 1161223787460 in words is "one trillion, one hundred sixty-one billion, two hundred twenty-three million, seven hundred eighty-seven thousand, four hundred sixty".