1155470667440 has 40 divisors (see below), whose sum is σ = 2686601247408. Its totient is φ = 462165566720.

The previous prime is 1155470667437. The next prime is 1155470667443. The reversal of 1155470667440 is 447660745511.

It is an interprime number because it is at equal distance from previous prime (1155470667437) and next prime (1155470667443).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1155470667440² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1155470667443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334279 + ... + 2022681.

Almost surely, 2^{1155470667440} is an apocalyptic number.

1155470667440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155470667440 is an abundant number, since it is smaller than the sum of its proper divisors (1531130579968).

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

1155470667440 is a wasteful number, since it uses less digits than its factorization.

1155470667440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709397 (or 709391 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 1155470667440 in words is "one trillion, one hundred fifty-five billion, four hundred seventy million, six hundred sixty-seven thousand, four hundred forty".