1016777776100 has 36 divisors (see below), whose sum is σ = 2277582225408. Its totient is φ = 393591396000.

The previous prime is 1016777776081. The next prime is 1016777776153. The reversal of 1016777776100 is 16777776101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163993316 + ... + 163999515.

It is an arithmetic number, because the mean of its divisors is an integer number (63266172928).

Almost surely, 2^{1016777776100} is an apocalyptic number.

1016777776100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1016777776100 is an abundant number, since it is smaller than the sum of its proper divisors (1260804449308).

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

1016777776100 is a wasteful number, since it uses less digits than its factorization.

1016777776100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327992876 (or 327992869 counting only the distinct ones).

The product of its (nonzero) digits is 605052, while the sum is 50.

Subtracting from 1016777776100 its reverse (16777776101), we obtain a palindrome (999999999999).

The spelling of 1016777776100 in words is "one trillion, sixteen billion, seven hundred seventy-seven million, seven hundred seventy-six thousand, one hundred".