61001000605 has 8 divisors (see below), whose sum is σ = 73204215552. Its totient is φ = 48798790608.

The previous prime is 61001000549. The next prime is 61001000609. The reversal of 61001000605 is 50600010016.

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

It is a cyclic number.

It is not a de Polignac number, because 61001000605 - 2²³ = 60992611997 is a prime.

It is a super-2 number, since 2×61001000605² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61001000609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110529 + ... + 366358.

It is an arithmetic number, because the mean of its divisors is an integer number (9150526944).

Almost surely, 2^61001000605 is an apocalyptic number.

It is an amenable number.

61001000605 is a deficient number, since it is larger than the sum of its proper divisors (12203214947).

61001000605 is a wasteful number, since it uses less digits than its factorization.

61001000605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502475.

The product of its (nonzero) digits is 180, while the sum is 19.

The spelling of 61001000605 in words is "sixty-one billion, one million, six hundred five", and thus it is an aban number.