66346536 has 32 divisors (see below), whose sum is σ = 173079360. Its totient is φ = 21153792.

The previous prime is 66346493. The next prime is 66346543. The reversal of 66346536 is 63564366.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66346494 and 66346503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59545 + ... + 60648.

It is an arithmetic number, because the mean of its divisors is an integer number (5408730).

Almost surely, 2^66346536 is an apocalyptic number.

It is an amenable number.

66346536 is an abundant number, since it is smaller than the sum of its proper divisors (106732824).

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

66346536 is a wasteful number, since it uses less digits than its factorization.

66346536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120225 (or 120221 counting only the distinct ones).

The product of its digits is 233280, while the sum is 39.

The square root of 66346536 is about 8145.3382986835. The cubic root of 66346536 is about 404.8300582543.

The spelling of 66346536 in words is "sixty-six million, three hundred forty-six thousand, five hundred thirty-six".