15554140023002 has 32 divisors (see below), whose sum is σ = 27032259408384. Its totient is φ = 6574073788800.

The previous prime is 15554140022957. The next prime is 15554140023031. The reversal of 15554140023002 is 20032004145551.

It is a self number, because there is not a number n which added to its sum of digits gives 15554140023002.

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, 9317252 + ... + 10859072.

It is an arithmetic number, because the mean of its divisors is an integer number (844758106512).

Almost surely, 2^{15554140023002} is an apocalyptic number.

15554140023002 is a deficient number, since it is larger than the sum of its proper divisors (11478119385382).

15554140023002 is a wasteful number, since it uses less digits than its factorization.

15554140023002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551774.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 15554140023002 its reverse (20032004145551), we get a palindrome (35586144168553).

The spelling of 15554140023002 in words is "fifteen trillion, five hundred fifty-four billion, one hundred forty million, twenty-three thousand, two".