2061654262625 has 16 divisors (see below), whose sum is σ = 2586415463424. Its totient is φ = 1640688190000.

The previous prime is 2061654262607. The next prime is 2061654262627. The reversal of 2061654262625 is 5262624561602.

It is not a de Polignac number, because 2061654262625 - 2¹² = 2061654258529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2061654262625.

It is not an unprimeable number, because it can be changed into a prime (2061654262627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43152131 + ... + 43199880.

It is an arithmetic number, because the mean of its divisors is an integer number (161650966464).

Almost surely, 2^{2061654262625} is an apocalyptic number.

2061654262625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2061654262625 is a deficient number, since it is larger than the sum of its proper divisors (524761200799).

2061654262625 is an equidigital number, since it uses as much as digits as its factorization.

2061654262625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86352217 (or 86352207 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 2061654262625 in words is "two trillion, sixty-one billion, six hundred fifty-four million, two hundred sixty-two thousand, six hundred twenty-five".