1553400541632 has 56 divisors (see below), whose sum is σ = 4288736290176. Its totient is φ = 495287127808.

The previous prime is 1553400541619. The next prime is 1553400541657. The reversal of 1553400541632 is 2361450043551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175878798 + ... + 175887629.

Almost surely, 2^{1553400541632} is an apocalyptic number.

1553400541632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1553400541632 is an abundant number, since it is smaller than the sum of its proper divisors (2735335748544).

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

1553400541632 is a wasteful number, since it uses less digits than its factorization.

1553400541632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351766465 (or 351766455 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 1553400541632 in words is "one trillion, five hundred fifty-three billion, four hundred million, five hundred forty-one thousand, six hundred thirty-two".