1554000021132 has 48 divisors (see below), whose sum is σ = 3915226506240. Its totient is φ = 476892214848.

The previous prime is 1554000021103. The next prime is 1554000021157. The reversal of 1554000021132 is 2311200004551.

It is a happy number.

It is a super-2 number, since 2×1554000021132² (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 15 ways as a sum of consecutive naturals, for example, 13082748 + ... + 13200995.

It is an arithmetic number, because the mean of its divisors is an integer number (81567218880).

Almost surely, 2^{1554000021132} is an apocalyptic number.

1554000021132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1554000021132 is an abundant number, since it is smaller than the sum of its proper divisors (2361226485108).

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

1554000021132 is a wasteful number, since it uses less digits than its factorization.

1554000021132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26284142 (or 26284140 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 1554000021132 its reverse (2311200004551), we get a palindrome (3865200025683).

The spelling of 1554000021132 in words is "one trillion, five hundred fifty-four billion, twenty-one thousand, one hundred thirty-two".