1071662172365 has 16 divisors (see below), whose sum is σ = 1318080266496. Its totient is φ = 835962153600.

The previous prime is 1071662172337. The next prime is 1071662172367. The reversal of 1071662172365 is 5632712661701.

It is not a de Polignac number, because 1071662172365 - 2¹⁴ = 1071662155981 is a prime.

It is a super-2 number, since 2×1071662172365² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071662172367) 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 15 ways as a sum of consecutive naturals, for example, 1052177 + ... + 1802886.

It is an arithmetic number, because the mean of its divisors is an integer number (82380016656).

Almost surely, 2^{1071662172365} is an apocalyptic number.

It is an amenable number.

1071662172365 is a deficient number, since it is larger than the sum of its proper divisors (246418094131).

1071662172365 is a wasteful number, since it uses less digits than its factorization.

1071662172365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856940.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 1071662172365 in words is "one trillion, seventy-one billion, six hundred sixty-two million, one hundred seventy-two thousand, three hundred sixty-five".