1161960316938 has 40 divisors (see below), whose sum is σ = 2604857442660. Its totient is φ = 387140757120.

The previous prime is 1161960316931. The next prime is 1161960316969. The reversal of 1161960316938 is 8396130691611.

It is a happy number.

1161960316938 is a `hidden beast` number, since 1 + 1 + 6 + 19 + 603 + 16 + 9 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1119010655889 + 42949661049 = 1057833^2 + 207243^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1161960316931) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1309473 + ... + 2009636.

Almost surely, 2^{1161960316938} is an apocalyptic number.

1161960316938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1161960316938 is an abundant number, since it is smaller than the sum of its proper divisors (1442897125722).

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

1161960316938 is a wasteful number, since it uses less digits than its factorization.

1161960316938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321284 (or 3321275 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 1161960316938 in words is "one trillion, one hundred sixty-one billion, nine hundred sixty million, three hundred sixteen thousand, nine hundred thirty-eight".