1453640665032 has 96 divisors (see below), whose sum is σ = 4013083414080. Its totient is φ = 475265500800.

The previous prime is 1453640665019. The next prime is 1453640665069. The reversal of 1453640665032 is 2305660463541.

1453640665032 is a `hidden beast` number, since 1 + 4 + 536 + 4 + 0 + 66 + 50 + 3 + 2 = 666.

It is a super-2 number, since 2×1453640665032² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155988 + ... + 1712195.

It is an arithmetic number, because the mean of its divisors is an integer number (41802952230).

Almost surely, 2^{1453640665032} is an apocalyptic number.

1453640665032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1453640665032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2006541707040).

1453640665032 is an abundant number, since it is smaller than the sum of its proper divisors (2559442749048).

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

1453640665032 is a wasteful number, since it uses less digits than its factorization.

1453640665032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868403 (or 1868396 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 1453640665032 in words is "one trillion, four hundred fifty-three billion, six hundred forty million, six hundred sixty-five thousand, thirty-two".