1641641654252 has 6 divisors (see below), whose sum is σ = 2872872894948. Its totient is φ = 820820827124.

The previous prime is 1641641654221. The next prime is 1641641654267. The reversal of 1641641654252 is 2524561461461.

It is a junction number, because it is equal to n+sod(n) for n = 1641641654197 and 1641641654206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205205206778 + ... + 205205206785.

It is an arithmetic number, because the mean of its divisors is an integer number (478812149158).

Almost surely, 2^{1641641654252} is an apocalyptic number.

It is an amenable number.

1641641654252 is a deficient number, since it is larger than the sum of its proper divisors (1231231240696).

1641641654252 is a wasteful number, since it uses less digits than its factorization.

1641641654252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410410413567 (or 410410413565 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 47.

The spelling of 1641641654252 in words is "one trillion, six hundred forty-one billion, six hundred forty-one million, six hundred fifty-four thousand, two hundred fifty-two".