611401206516 has 24 divisors (see below), whose sum is σ = 1432571871360. Its totient is φ = 202947679872.

The previous prime is 611401206503. The next prime is 611401206517. The reversal of 611401206516 is 615602104116.

It is a super-2 number, since 2×611401206516² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611401206517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106587301 + ... + 106593036.

It is an arithmetic number, because the mean of its divisors is an integer number (59690494640).

Almost surely, 2^611401206516 is an apocalyptic number.

It is an amenable number.

611401206516 is an abundant number, since it is smaller than the sum of its proper divisors (821170664844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611401206516 is a wasteful number, since it uses less digits than its factorization.

611401206516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213180583 (or 213180581 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 611401206516 in words is "six hundred eleven billion, four hundred one million, two hundred six thousand, five hundred sixteen".