45634408647661 has 4 divisors (see below), whose sum is σ = 45634523042524. Its totient is φ = 45634294252800.

The previous prime is 45634408647643. The next prime is 45634408647679. The reversal of 45634408647661 is 16674680443654.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (45634408647643) and next prime (45634408647679).

It can be written as a sum of positive squares in 2 ways, for example, as 23112835071561 + 22521573576100 = 4807581^2 + 4745690^2 .

It is a cyclic number.

It is not a de Polignac number, because 45634408647661 - 2⁵ = 45634408647629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45634408647593 and 45634408647602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45634408647631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56596950 + ... + 57397591.

It is an arithmetic number, because the mean of its divisors is an integer number (11408630760631).

Almost surely, 2^{45634408647661} is an apocalyptic number.

It is an amenable number.

45634408647661 is a deficient number, since it is larger than the sum of its proper divisors (114394863).

45634408647661 is a wasteful number, since it uses less digits than its factorization.

45634408647661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114394862.

The product of its (nonzero) digits is 278691840, while the sum is 64.

The spelling of 45634408647661 in words is "forty-five trillion, six hundred thirty-four billion, four hundred eight million, six hundred forty-seven thousand, six hundred sixty-one".