611061721375 has 96 divisors (see below), whose sum is σ = 902103785856. Its totient is φ = 411989760000.

The previous prime is 611061721357. The next prime is 611061721379. The reversal of 611061721375 is 573127160116.

It is not a de Polignac number, because 611061721375 - 2¹³ = 611061713183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611061721379) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 93274350 + ... + 93280900.

It is an arithmetic number, because the mean of its divisors is an integer number (9396914436).

Almost surely, 2^611061721375 is an apocalyptic number.

611061721375 is a deficient number, since it is larger than the sum of its proper divisors (291042064481).

611061721375 is a wasteful number, since it uses less digits than its factorization.

611061721375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834 (or 6817 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 611061721375 in words is "six hundred eleven billion, sixty-one million, seven hundred twenty-one thousand, three hundred seventy-five".