1081665774354 has 64 divisors (see below), whose sum is σ = 2436342976512. Its totient is φ = 317175921600.

The previous prime is 1081665774311. The next prime is 1081665774361. The reversal of 1081665774354 is 4534775661801.

It is a junction number, because it is equal to n+sod(n) for n = 1081665774294 and 1081665774303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38690209 + ... + 38718155.

It is an arithmetic number, because the mean of its divisors is an integer number (38067859008).

Almost surely, 2^{1081665774354} is an apocalyptic number.

1081665774354 is an abundant number, since it is smaller than the sum of its proper divisors (1354677202158).

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

1081665774354 is a wasteful number, since it uses less digits than its factorization.

1081665774354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46911.

The product of its (nonzero) digits is 16934400, while the sum is 57.

The spelling of 1081665774354 in words is "one trillion, eighty-one billion, six hundred sixty-five million, seven hundred seventy-four thousand, three hundred fifty-four".