16542779026290 has 64 divisors (see below), whose sum is σ = 43387856658432. Its totient is φ = 4003347211200.

The previous prime is 16542779026283. The next prime is 16542779026331. The reversal of 16542779026290 is 9262097724561.

It is a happy number.

It is a super-2 number, since 2×16542779026290² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43707922 + ... + 44084781.

It is an arithmetic number, because the mean of its divisors is an integer number (677935260288).

Almost surely, 2^{16542779026290} is an apocalyptic number.

16542779026290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16542779026290 is an abundant number, since it is smaller than the sum of its proper divisors (26845077632142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16542779026290 is a wasteful number, since it uses less digits than its factorization.

16542779026290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87793295.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 16542779026290 in words is "sixteen trillion, five hundred forty-two billion, seven hundred seventy-nine million, twenty-six thousand, two hundred ninety".