326061034003661 has 4 divisors (see below), whose sum is σ = 355702946185824. Its totient is φ = 296419121821500.

The previous prime is 326061034003619. The next prime is 326061034003667. The reversal of 326061034003661 is 166300430160623.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326061034003661 is a prime.

It is a super-2 number, since 2×326061034003661² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326061034003667) 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, 14820956091065 + ... + 14820956091086.

It is an arithmetic number, because the mean of its divisors is an integer number (88925736546456).

Almost surely, 2^{326061034003661} is an apocalyptic number.

It is an amenable number.

326061034003661 is a deficient number, since it is larger than the sum of its proper divisors (29641912182163).

326061034003661 is a wasteful number, since it uses less digits than its factorization.

326061034003661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29641912182162.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 326061034003661 in words is "three hundred twenty-six trillion, sixty-one billion, thirty-four million, three thousand, six hundred sixty-one".