61001646 has 8 divisors (see below), whose sum is σ = 122003304. Its totient is φ = 20333880.

The previous prime is 61001623. The next prime is 61001711. The reversal of 61001646 is 64610016.

It is a sphenic number, since it is the product of 3 distinct primes.

61001646 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5083465 + ... + 5083476.

It is an arithmetic number, because the mean of its divisors is an integer number (15250413).

Almost surely, 2^61001646 is an apocalyptic number.

61001646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61001646 is a wasteful number, since it uses less digits than its factorization.

61001646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10166946.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 61001646 is about 7810.3550495480. The cubic root of 61001646 is about 393.6532589747.

The spelling of 61001646 in words is "sixty-one million, one thousand, six hundred forty-six".