61503016446231 has 8 divisors (see below), whose sum is σ = 82004093024880. Its totient is φ = 41001975415872.

The previous prime is 61503016446203. The next prime is 61503016446239. The reversal of 61503016446231 is 13264461030516.

It is a happy number.

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

It is not a de Polignac number, because 61503016446231 - 2²² = 61503012251927 is a prime.

It is a super-2 number, since 2×61503016446231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61503016446239) 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, 4547376 + ... + 11986853.

It is an arithmetic number, because the mean of its divisors is an integer number (10250511628110).

Almost surely, 2^{61503016446231} is an apocalyptic number.

61503016446231 is a deficient number, since it is larger than the sum of its proper divisors (20501076578649).

61503016446231 is a wasteful number, since it uses less digits than its factorization.

61503016446231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17774145.

The product of its (nonzero) digits is 311040, while the sum is 42.

Adding to 61503016446231 its reverse (13264461030516), we get a palindrome (74767477476747).

The spelling of 61503016446231 in words is "sixty-one trillion, five hundred three billion, sixteen million, four hundred forty-six thousand, two hundred thirty-one".