16506146534 has 4 divisors (see below), whose sum is σ = 24759219804. Its totient is φ = 8253073266.

The previous prime is 16506146521. The next prime is 16506146537. The reversal of 16506146534 is 43564160561.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 16506146491 and 16506146500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506146537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4126536632 + ... + 4126536635.

It is an arithmetic number, because the mean of its divisors is an integer number (6189804951).

Almost surely, 2^16506146534 is an apocalyptic number.

16506146534 is a deficient number, since it is larger than the sum of its proper divisors (8253073270).

16506146534 is an equidigital number, since it uses as much as digits as its factorization.

16506146534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8253073269.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 16506146534 in words is "sixteen billion, five hundred six million, one hundred forty-six thousand, five hundred thirty-four".