6261466140 has 72 divisors (see below), whose sum is σ = 19032380640. Its totient is φ = 1666272384.

The previous prime is 6261466121. The next prime is 6261466151. The reversal of 6261466140 is 416641626.

6261466140 is a `hidden beast` number, since 6 + 26 + 14 + 6 + 614 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6261466095 and 6261466104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51946 + ... + 123374.

It is an arithmetic number, because the mean of its divisors is an integer number (264338620).

Almost surely, 2^6261466140 is an apocalyptic number.

6261466140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6261466140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9516190320).

6261466140 is an abundant number, since it is smaller than the sum of its proper divisors (12770914500).

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

6261466140 is a wasteful number, since it uses less digits than its factorization.

6261466140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71931 (or 71926 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 6261466140 is about 79129.4265112543. The cubic root of 6261466140 is about 1843.1415043952.

The spelling of 6261466140 in words is "six billion, two hundred sixty-one million, four hundred sixty-six thousand, one hundred forty".