1554401412400 has 360 divisors, whose sum is σ = 4024073871360. Its totient is φ = 576844369920.

The previous prime is 1554401412373. The next prime is 1554401412467. The reversal of 1554401412400 is 42141044551.

It is a super-2 number, since 2×1554401412400² (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 71 ways as a sum of consecutive naturals, for example, 3508806579 + ... + 3508807021.

It is an arithmetic number, because the mean of its divisors is an integer number (11177982976).

Almost surely, 2^{1554401412400} is an apocalyptic number.

1554401412400 is a gapful number since it is divisible by the number (10) 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 1554401412400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2012036935680).

1554401412400 is an abundant number, since it is smaller than the sum of its proper divisors (2469672458960).

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

1554401412400 is a wasteful number, since it uses less digits than its factorization.

1554401412400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 1554401412400 its reverse (42141044551), we get a palindrome (1596542456951).

The spelling of 1554401412400 in words is "one trillion, five hundred fifty-four billion, four hundred one million, four hundred twelve thousand, four hundred".