1552915429640 has 32 divisors (see below), whose sum is σ = 3494577121560. Its totient is φ = 621074188800.

The previous prime is 1552915429621. The next prime is 1552915429679. The reversal of 1552915429640 is 469245192551.

It can be written as a sum of positive squares in 4 ways, for example, as 1366883663044 + 186031766596 = 1169138^2 + 431314^2 .

It is a super-2 number, since 2×1552915429640² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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, 2600651 + ... + 3141530.

Almost surely, 2^{1552915429640} is an apocalyptic number.

1552915429640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1552915429640 is an abundant number, since it is smaller than the sum of its proper divisors (1941661691920).

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

1552915429640 is a wasteful number, since it uses less digits than its factorization.

1552915429640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748953 (or 5748949 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 53.

The spelling of 1552915429640 in words is "one trillion, five hundred fifty-two billion, nine hundred fifteen million, four hundred twenty-nine thousand, six hundred forty".