1554201443542 has 16 divisors (see below), whose sum is σ = 2692841004432. Its totient is φ = 664899013120.

The previous prime is 1554201443537. The next prime is 1554201443569. The reversal of 1554201443542 is 2453441024551.

It is a super-2 number, since 2×1554201443542² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1554201443495 and 1554201443504.

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, 2077809043 + ... + 2077809790.

It is an arithmetic number, because the mean of its divisors is an integer number (168302562777).

Almost surely, 2^{1554201443542} is an apocalyptic number.

1554201443542 is a deficient number, since it is larger than the sum of its proper divisors (1138639560890).

1554201443542 is a wasteful number, since it uses less digits than its factorization.

1554201443542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155618863.

The product of its (nonzero) digits is 384000, while the sum is 40.

The spelling of 1554201443542 in words is "one trillion, five hundred fifty-four billion, two hundred one million, four hundred forty-three thousand, five hundred forty-two".