1151515163940 has 96 divisors (see below), whose sum is σ = 3394340691840. Its totient is φ = 290874700800.

The previous prime is 1151515163917. The next prime is 1151515163951. The reversal of 1151515163940 is 493615151511.

It is a junction number, because it is equal to n+sod(n) for n = 1151515163892 and 1151515163901.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10388410 + ... + 10498670.

It is an arithmetic number, because the mean of its divisors is an integer number (35357715540).

Almost surely, 2^{1151515163940} is an apocalyptic number.

1151515163940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151515163940 is an abundant number, since it is smaller than the sum of its proper divisors (2242825527900).

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

1151515163940 is a wasteful number, since it uses less digits than its factorization.

1151515163940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119453 (or 119451 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 42.

The spelling of 1151515163940 in words is "one trillion, one hundred fifty-one billion, five hundred fifteen million, one hundred sixty-three thousand, nine hundred forty".