9061801645 has 16 divisors (see below), whose sum is σ = 11820090240. Its totient is φ = 6629246784.

The previous prime is 9061801643. The next prime is 9061801667. The reversal of 9061801645 is 5461081609.

It is a cyclic number.

It is not a de Polignac number, because 9061801645 - 2¹ = 9061801643 is a prime.

It is a super-3 number, since 3×9061801645³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9061801598 and 9061801607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9061801643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644505 + ... + 658414.

It is an arithmetic number, because the mean of its divisors is an integer number (738755640).

Almost surely, 2^9061801645 is an apocalyptic number.

It is an amenable number.

9061801645 is a deficient number, since it is larger than the sum of its proper divisors (2758288595).

9061801645 is a wasteful number, since it uses less digits than its factorization.

9061801645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303044.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 9061801645 is about 95193.4958124766. The cubic root of 9061801645 is about 2084.8341737547.

Subtracting from 9061801645 its reverse (5461081609), we obtain a square (3600720036 = 60006²).

The spelling of 9061801645 in words is "nine billion, sixty-one million, eight hundred one thousand, six hundred forty-five".