6659156146734 has 128 divisors (see below), whose sum is σ = 18228514268160. Its totient is φ = 1754772336000.

The previous prime is 6659156146711. The next prime is 6659156146751. The reversal of 6659156146734 is 4376416519566.

It is a happy number.

6659156146734 is a `hidden beast` number, since 6 + 6 + 5 + 9 + 1 + 5 + 614 + 6 + 7 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 5229709 + ... + 6377159.

It is an arithmetic number, because the mean of its divisors is an integer number (142410267720).

Almost surely, 2^{6659156146734} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6659156146734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9114257134080).

6659156146734 is an abundant number, since it is smaller than the sum of its proper divisors (11569358121426).

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

6659156146734 is a wasteful number, since it uses less digits than its factorization.

6659156146734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148663 (or 1148657 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 63.

The spelling of 6659156146734 in words is "six trillion, six hundred fifty-nine billion, one hundred fifty-six million, one hundred forty-six thousand, seven hundred thirty-four".