611535520145 has 32 divisors (see below), whose sum is σ = 808197626880. Its totient is φ = 440509186240.

The previous prime is 611535520117. The next prime is 611535520151. The reversal of 611535520145 is 541025535116.

It is not a de Polignac number, because 611535520145 - 2⁶ = 611535520081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 611535520099 and 611535520108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51893924 + ... + 51905706.

It is an arithmetic number, because the mean of its divisors is an integer number (25256175840).

Almost surely, 2^611535520145 is an apocalyptic number.

It is an amenable number.

611535520145 is a deficient number, since it is larger than the sum of its proper divisors (196662106735).

611535520145 is a wasteful number, since it uses less digits than its factorization.

611535520145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20725.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 611535520145 in words is "six hundred eleven billion, five hundred thirty-five million, five hundred twenty thousand, one hundred forty-five".