16121552354 has 16 divisors (see below), whose sum is σ = 24781752576. Its totient is φ = 7861120800.

The previous prime is 16121552351. The next prime is 16121552399. The reversal of 16121552354 is 45325512161.

It is not an unprimeable number, because it can be changed into a prime (16121552351) 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 7 ways as a sum of consecutive naturals, for example, 182219 + ... + 255825.

It is an arithmetic number, because the mean of its divisors is an integer number (1548859536).

Almost surely, 2^16121552354 is an apocalyptic number.

16121552354 is a deficient number, since it is larger than the sum of its proper divisors (8660200222).

16121552354 is a wasteful number, since it uses less digits than its factorization.

16121552354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76321.

The product of its digits is 36000, while the sum is 35.

The spelling of 16121552354 in words is "sixteen billion, one hundred twenty-one million, five hundred fifty-two thousand, three hundred fifty-four".