16572134890 has 16 divisors (see below), whose sum is σ = 29834394408. Its totient is φ = 6627842496.

The previous prime is 16572134881. The next prime is 16572134897. The reversal of 16572134890 is 9843127561.

It can be written as a sum of positive squares in 4 ways, for example, as 15893897041 + 678237849 = 126071^2 + 26043^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16572134890.

It is not an unprimeable number, because it can be changed into a prime (16572134897) 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, 55737 + ... + 190396.

It is a 1-persistent number, because it is pandigital, but 2⋅16572134890 = 33144269780 is not.

Almost surely, 2^16572134890 is an apocalyptic number.

16572134890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16572134890 is a deficient number, since it is larger than the sum of its proper divisors (13262259518).

16572134890 is a wasteful number, since it uses less digits than its factorization.

16572134890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252873.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 16572134890 in words is "sixteen billion, five hundred seventy-two million, one hundred thirty-four thousand, eight hundred ninety".