1155015105454 has 40 divisors (see below), whose sum is σ = 2029614907680. Its totient is φ = 492934827168.

The previous prime is 1155015105379. The next prime is 1155015105469. The reversal of 1155015105454 is 4545015105511.

It is a super-2 number, since 2×1155015105454² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 644482 + ... + 1650874.

It is an arithmetic number, because the mean of its divisors is an integer number (50740372692).

Almost surely, 2^{1155015105454} is an apocalyptic number.

1155015105454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1155015105454 is a deficient number, since it is larger than the sum of its proper divisors (874599802226).

1155015105454 is an equidigital number, since it uses as much as digits as its factorization.

1155015105454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006662 (or 1006641 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 37.

The spelling of 1155015105454 in words is "one trillion, one hundred fifty-five billion, fifteen million, one hundred five thousand, four hundred fifty-four".