61201641445 has 32 divisors (see below), whose sum is σ = 85228627968. Its totient is φ = 41319989568.

The previous prime is 61201641439. The next prime is 61201641541. The reversal of 61201641445 is 54414610216.

It is a cyclic number.

It is not a de Polignac number, because 61201641445 - 2⁷ = 61201641317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61201641445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5864322 + ... + 5874748.

It is an arithmetic number, because the mean of its divisors is an integer number (2663394624).

Almost surely, 2^61201641445 is an apocalyptic number.

It is an amenable number.

61201641445 is a deficient number, since it is larger than the sum of its proper divisors (24026986523).

61201641445 is a wasteful number, since it uses less digits than its factorization.

61201641445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13009.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 61201641445 in words is "sixty-one billion, two hundred one million, six hundred forty-one thousand, four hundred forty-five".