15554944141 has 32 divisors (see below), whose sum is σ = 17536578048. Its totient is φ = 13675314240.

The previous prime is 15554944129. The next prime is 15554944157. The reversal of 15554944141 is 14144945551.

It is a cyclic number.

It is not a de Polignac number, because 15554944141 - 2⁵ = 15554944109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15554941141) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 29741506 + ... + 29742028.

It is an arithmetic number, because the mean of its divisors is an integer number (548018064).

Almost surely, 2^15554944141 is an apocalyptic number.

15554944141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15554944141 is a deficient number, since it is larger than the sum of its proper divisors (1981633907).

15554944141 is a wasteful number, since it uses less digits than its factorization.

15554944141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081.

The product of its digits is 288000, while the sum is 43.

The spelling of 15554944141 in words is "fifteen billion, five hundred fifty-four million, nine hundred forty-four thousand, one hundred forty-one".