201611062551 has 8 divisors (see below), whose sum is σ = 268821258624. Its totient is φ = 134404120760.

The previous prime is 201611062531. The next prime is 201611062559. The reversal of 201611062551 is 155260116102.

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 201611062551 - 2⁵ = 201611062519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201611062559) 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, 665145 + ... + 919586.

It is an arithmetic number, because the mean of its divisors is an integer number (33602657328).

Almost surely, 2^201611062551 is an apocalyptic number.

201611062551 is a deficient number, since it is larger than the sum of its proper divisors (67210196073).

201611062551 is a wasteful number, since it uses less digits than its factorization.

201611062551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627141.

The product of its (nonzero) digits is 3600, while the sum is 30.

Adding to 201611062551 its reverse (155260116102), we get a palindrome (356871178653).

The spelling of 201611062551 in words is "two hundred one billion, six hundred eleven million, sixty-two thousand, five hundred fifty-one".