61064266211621 has 8 divisors (see below), whose sum is σ = 62219984246784. Its totient is φ = 59908680105040.

The previous prime is 61064266211591. The next prime is 61064266211713. The reversal of 61064266211621 is 12611266246016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61064266211621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61064266211521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32047421 + ... + 33899346.

It is an arithmetic number, because the mean of its divisors is an integer number (7777498030848).

Almost surely, 2^{61064266211621} is an apocalyptic number.

It is an amenable number.

61064266211621 is a deficient number, since it is larger than the sum of its proper divisors (1155718035163).

61064266211621 is a wasteful number, since it uses less digits than its factorization.

61064266211621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65964291.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 61064266211621 in words is "sixty-one trillion, sixty-four billion, two hundred sixty-six million, two hundred eleven thousand, six hundred twenty-one".