1654676705412 has 72 divisors (see below), whose sum is σ = 4355924391000. Its totient is φ = 528965488128.

The previous prime is 1654676705393. The next prime is 1654676705413. The reversal of 1654676705412 is 2145076764561.

1654676705412 is a `hidden beast` number, since 1 + 65 + 467 + 6 + 70 + 54 + 1 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 73481113476 + 1581195591936 = 271074^2 + 1257456^2 .

It is a super-2 number, since 2×1654676705412² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1654676705413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5163033 + ... + 5474144.

It is an arithmetic number, because the mean of its divisors is an integer number (60498949875).

Almost surely, 2^{1654676705412} is an apocalyptic number.

1654676705412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1654676705412 is an abundant number, since it is smaller than the sum of its proper divisors (2701247685588).

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

1654676705412 is a wasteful number, since it uses less digits than its factorization.

1654676705412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10637365 (or 10637360 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 1654676705412 in words is "one trillion, six hundred fifty-four billion, six hundred seventy-six million, seven hundred five thousand, four hundred twelve".