20493040901776 has 45 divisors (see below), whose sum is σ = 39787497246441. Its totient is φ = 10225343500416.

The previous prime is 20493040901701. The next prime is 20493040901789. The reversal of 20493040901776 is 67710904039402.

The square root of 20493040901776 is 4526924.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6525061536400 + 13967979365376 = 2554420^2 + 3737376^2 .

It is a super-3 number, since 3×20493040901776³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12367555540 + ... + 12367557196.

Almost surely, 2^{20493040901776} is an apocalyptic number.

20493040901776 is the 4526924-th square number.

It is an amenable number.

20493040901776 is a deficient number, since it is larger than the sum of its proper divisors (19294456344665).

20493040901776 is an frugal number, since it uses more digits than its factorization.

20493040901776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688 (or 2342 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 20493040901776 in words is "twenty trillion, four hundred ninety-three billion, forty million, nine hundred one thousand, seven hundred seventy-six".