10881777952516 has 9 divisors (see below), whose sum is σ = 19043122962549. Its totient is φ = 5440885677504.

The previous prime is 10881777952499. The next prime is 10881777952523. The reversal of 10881777952516 is 61525977718801.

The square root of 10881777952516 is 3298754.

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., 988891024900 + 9892886927616 = 994430^2 + 3145296^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5772820 + ... + 7422196.

Almost surely, 2^{10881777952516} is an apocalyptic number.

10881777952516 is the 3298754-th square number.

It is an amenable number.

10881777952516 is a deficient number, since it is larger than the sum of its proper divisors (8161345010033).

10881777952516 is an frugal number, since it uses more digits than its factorization.

10881777952516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298758 (or 1649379 counting only the distinct ones).

The product of its (nonzero) digits is 59270400, while the sum is 67.

The spelling of 10881777952516 in words is "ten trillion, eight hundred eighty-one billion, seven hundred seventy-seven million, nine hundred fifty-two thousand, five hundred sixteen".