61901655001606 has 8 divisors (see below), whose sum is σ = 106117122859920. Its totient is φ = 26529280714968.

The previous prime is 61901655001603. The next prime is 61901655001631. The reversal of 61901655001606 is 60610055610916.

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

It is a super-3 number, since 3×61901655001606³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61901655001603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2210773392901 + ... + 2210773392928.

It is an arithmetic number, because the mean of its divisors is an integer number (13264640357490).

Almost surely, 2^{61901655001606} is an apocalyptic number.

61901655001606 is a deficient number, since it is larger than the sum of its proper divisors (44215467858314).

61901655001606 is a wasteful number, since it uses less digits than its factorization.

61901655001606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4421546785838.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 61901655001606 in words is "sixty-one trillion, nine hundred one billion, six hundred fifty-five million, one thousand, six hundred six".