16456019542 has 16 divisors (see below), whose sum is σ = 24947652240. Its totient is φ = 8140197888.

The previous prime is 16456019423. The next prime is 16456019543. The reversal of 16456019542 is 24591065461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16456019543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571638 + ... + 599734.

It is an arithmetic number, because the mean of its divisors is an integer number (1559228265).

Almost surely, 2^16456019542 is an apocalyptic number.

16456019542 is a deficient number, since it is larger than the sum of its proper divisors (8491632698).

16456019542 is a wasteful number, since it uses less digits than its factorization.

16456019542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31215.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 16456019542 in words is "sixteen billion, four hundred fifty-six million, nineteen thousand, five hundred forty-two".