611061421645 has 64 divisors (see below), whose sum is σ = 810613036800. Its totient is φ = 440402780160.

The previous prime is 611061421637. The next prime is 611061421667. The reversal of 611061421645 is 546124160116.

It is not a de Polignac number, because 611061421645 - 2³ = 611061421637 is a prime.

It is a super-3 number, since 3×611061421645³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56381167 + ... + 56392003.

It is an arithmetic number, because the mean of its divisors is an integer number (12665828700).

Almost surely, 2^611061421645 is an apocalyptic number.

It is an amenable number.

611061421645 is a deficient number, since it is larger than the sum of its proper divisors (199551615155).

611061421645 is a wasteful number, since it uses less digits than its factorization.

611061421645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11198.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 611061421645 in words is "six hundred eleven billion, sixty-one million, four hundred twenty-one thousand, six hundred forty-five".