16820090158434 has 16 divisors (see below), whose sum is σ = 35102796852672. Its totient is φ = 5362927296848.

The previous prime is 16820090158381. The next prime is 16820090158439. The reversal of 16820090158434 is 43485109002861.

It is not an unprimeable number, because it can be changed into a prime (16820090158439) 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, 60942355509 + ... + 60942355784.

It is an arithmetic number, because the mean of its divisors is an integer number (2193924803292).

Almost surely, 2^{16820090158434} is an apocalyptic number.

16820090158434 is an abundant number, since it is smaller than the sum of its proper divisors (18282706694238).

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

16820090158434 is a wasteful number, since it uses less digits than its factorization.

16820090158434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121884711321.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 16820090158434 in words is "sixteen trillion, eight hundred twenty billion, ninety million, one hundred fifty-eight thousand, four hundred thirty-four".