1151817822315 has 40 divisors (see below), whose sum is σ = 2084036811120. Its totient is φ = 608561667648.

The previous prime is 1151817822247. The next prime is 1151817822317. The reversal of 1151817822315 is 5132287181511.

1151817822315 is a `hidden beast` number, since 11 + 518 + 1 + 78 + 22 + 31 + 5 = 666.

It is not a de Polignac number, because 1151817822315 - 2¹⁷ = 1151817691243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1151817822317) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13246360 + ... + 13333029.

It is an arithmetic number, because the mean of its divisors is an integer number (52100920278).

Almost surely, 2^{1151817822315} is an apocalyptic number.

1151817822315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1151817822315 is a deficient number, since it is larger than the sum of its proper divisors (932218988805).

1151817822315 is a wasteful number, since it uses less digits than its factorization.

1151817822315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26579513 (or 26579504 counting only the distinct ones).

The product of its digits is 134400, while the sum is 45.

The spelling of 1151817822315 in words is "one trillion, one hundred fifty-one billion, eight hundred seventeen million, eight hundred twenty-two thousand, three hundred fifteen".